2099/1/1: 1199 = 11:99 = integer ratio of 1 to 9
2099/1/1: 1199 = 11:99 = each is single digit
2099/1/1: 1199 = 11:99 = each is palindrome
2099/1/1: 1199 = 11:99 = each is cyclic permutation symmetric
2099/1/1: 9911 = 99:11 = integer ratio of 9 to 1
2099/1/1: 9911 = 99:11 = each is single digit
2099/1/1: 9911 = 99:11 = each is palindrome
2099/1/1: 9911 = 99:11 = each is cyclic permutation symmetric
2099/1/9: 010999 = 010:999 = each is palindrome
2099/1/10: 011099 = 011:099 = integer ratio of 1 to 9
2099/1/10: 990110 = 990:110 = integer ratio of 9 to 1
2099/2/2: 2299 = 22:99 = each is single digit
2099/2/2: 2299 = 22:99 = each is palindrome
2099/2/2: 2299 = 22:99 = each is cyclic permutation symmetric
2099/2/2: 9922 = 99:22 = each is single digit
2099/2/2: 9922 = 99:22 = each is palindrome
2099/2/2: 9922 = 99:22 = each is cyclic permutation symmetric
2099/2/9: 020999 = 020:999 = each is palindrome
2099/2/13: 021399 = 021:399 = integer ratio of 1 to 19
2099/3/3: 3399 = 33:99 = integer ratio of 1 to 3
2099/3/3: 3399 = 33:99 = each is single digit
2099/3/3: 3399 = 33:99 = each is palindrome
2099/3/3: 3399 = 33:99 = each is cyclic permutation symmetric
2099/3/3: 9933 = 99:33 = integer ratio of 3 to 1
2099/3/3: 9933 = 99:33 = each is single digit
2099/3/3: 9933 = 99:33 = each is palindrome
2099/3/3: 9933 = 99:33 = each is cyclic permutation symmetric
2099/3/9: 030999 = 030:999 = each is palindrome
2099/3/18: 031899 = 031:899 = integer ratio of 1 to 29
2099/3/30: 033099 = 033:099 = integer ratio of 1 to 3
2099/3/30: 990330 = 990:330 = integer ratio of 3 to 1
2099/4/4: 4499 = 44:99 = each is single digit
2099/4/4: 4499 = 44:99 = each is palindrome
2099/4/4: 4499 = 44:99 = each is cyclic permutation symmetric
2099/4/4: 9944 = 99:44 = each is single digit
2099/4/4: 9944 = 99:44 = each is palindrome
2099/4/4: 9944 = 99:44 = each is cyclic permutation symmetric
2099/4/9: 040999 = 040:999 = each is palindrome
2099/5/5: 5599 = 55:99 = each is single digit
2099/5/5: 5599 = 55:99 = each is palindrome
2099/5/5: 5599 = 55:99 = each is cyclic permutation symmetric
2099/5/5: 9955 = 99:55 = each is single digit
2099/5/5: 9955 = 99:55 = each is palindrome
2099/5/5: 9955 = 99:55 = each is cyclic permutation symmetric
2099/5/9: 050999 = 050:999 = each is palindrome
2099/6/6: 6699 = 180 deg rotationally symmetric
2099/6/6: 6699 = 66:99 = each is single digit
2099/6/6: 6699 = 66:99 = each is palindrome
2099/6/6: 6699 = 66:99 = each is cyclic permutation symmetric
2099/6/6: 99066 = 180 deg rotationally symmetric
2099/6/6: 9966 = 180 deg rotationally symmetric
2099/6/6: 9966 = 99:66 = each is single digit
2099/6/6: 9966 = 99:66 = each is palindrome
2099/6/6: 9966 = 99:66 = each is cyclic permutation symmetric
2099/6/9: 060999 = 060:999 = each is palindrome
2099/7/7: 7799 = 77:99 = each is single digit
2099/7/7: 7799 = 77:99 = each is palindrome
2099/7/7: 7799 = 77:99 = each is cyclic permutation symmetric
2099/7/7: 9977 = 99:77 = each is single digit
2099/7/7: 9977 = 99:77 = each is palindrome
2099/7/7: 9977 = 99:77 = each is cyclic permutation symmetric
2099/7/9: 070999 = 070:999 = each is palindrome
2099/7/9: 792099 = 792:099 = integer ratio of 8 to 1
2099/8/8: 8899 = 88:99 = each is single digit
2099/8/8: 8899 = 88:99 = each is palindrome
2099/8/8: 8899 = 88:99 = each is cyclic permutation symmetric
2099/8/8: 9988 = 99:88 = each is single digit
2099/8/8: 9988 = 99:88 = each is palindrome
2099/8/8: 9988 = 99:88 = each is cyclic permutation symmetric
2099/8/9: 080999 = 080:999 = each is palindrome
2099/9/1: 010999 = 010:999 = each is palindrome
2099/9/2: 020999 = 020:999 = each is palindrome
2099/9/2: 2099902 = palindrome
2099/9/3: 030999 = 030:999 = each is palindrome
2099/9/4: 040999 = 040:999 = each is palindrome
2099/9/5: 050999 = 050:999 = each is palindrome
2099/9/6: 060999 = 060:999 = each is palindrome
2099/9/7: 070999 = 070:999 = each is palindrome
2099/9/7: 792099 = 792:099 = integer ratio of 8 to 1
2099/9/8: 080999 = 080:999 = each is palindrome
2099/9/9: 090999 = 090:999 = each is palindrome
2099/9/9: 99099 = palindrome
2099/9/9: 9999 = single digit
2099/9/9: 9999 = palindrome
2099/9/9: 9999 = cyclic permutation symmetric
2099/9/9: 9999 = 99:99 = each is single digit
2099/9/9: 9999 = 99:99 = each is palindrome
2099/9/9: 9999 = 99:99 = each is cyclic permutation symmetric
2099/10/1: 011099 = 011:099 = integer ratio of 1 to 9
2099/10/1: 991001 = 991:001 = integer ratio of 991 to 1
2099/10/19: 101999 = 101:999 = each is palindrome
2099/11/11: 111199 = 11:11:99 = each is single digit
2099/11/11: 111199 = 11:11:99 = each is palindrome
2099/11/11: 111199 = 11:11:99 = each is cyclic permutation symmetric
2099/11/11: 991111 = 99:11:11 = each is single digit
2099/11/11: 991111 = 99:11:11 = each is palindrome
2099/11/11: 991111 = 99:11:11 = each is cyclic permutation symmetric
2099/11/19: 111999 = 111:999 = integer ratio of 1 to 9
2099/11/19: 111999 = 111:999 = each is single digit
2099/11/19: 111999 = 111:999 = each is palindrome
2099/11/19: 111999 = 111:999 = each is cyclic permutation symmetric
2099/11/22: 112299 = 11:22:99 = each is single digit
2099/11/22: 112299 = 11:22:99 = each is palindrome
2099/11/22: 112299 = 11:22:99 = each is cyclic permutation symmetric
2099/11/22: 221199 = 22:11:99 = each is single digit
2099/11/22: 221199 = 22:11:99 = each is palindrome
2099/11/22: 221199 = 22:11:99 = each is cyclic permutation symmetric
2099/11/22: 991122 = 99:11:22 = each is single digit
2099/11/22: 991122 = 99:11:22 = each is palindrome
2099/11/22: 991122 = 99:11:22 = each is cyclic permutation symmetric
2099/12/19: 121999 = 121:999 = each is palindrome