221122

Appears in sequences

• Palindromes obtained as the concatenation of three successive terms of A091789.at n=1A091790
• Numbers for which the sum of reciprocals of square of digits is an integer.at n=21A182452
• Dates after Jan 01 00 in chronological order which are palindromic when they are written in the format DD.MM.YY. The terms are listed as numbers (without the dots). Leading zeros of the terms are suppressed.at n=8A210888
• List of privileged words over the alphabet {1,2}.at n=26A235609
• Palindromes which are a concatenation of three palindromes, each of which has at least 2 digits.at n=11A368020