One thousand two hundred twenty one
1221 is an odd number.
1221 is a palindrome.
In binary, 1221 is represented as 10011000101.
In hex, 1221 is represented as 4c5.
Prime factorization of 1221: 3 * 11 * 37.
Factors of 1221 are: 1, 3, 11, 33, 37, 111, 407, 1221.