12228957 has 24 divisors (see below), whose sum is σ = 19195904. Its totient is φ = 7457184.

The previous prime is 12228929. The next prime is 12228991. The reversal of 12228957 is 75982221.

12228957 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 12228957 - 2¹⁹ = 11704669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14448 + ... + 15270.

Almost surely, 2^12228957 is an apocalyptic number.

It is an amenable number.

12228957 is a deficient number, since it is larger than the sum of its proper divisors (6966947).

12228957 is a wasteful number, since it uses less digits than its factorization.

12228957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 966 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12228957 is about 3496.9925650479. The cubic root of 12228957 is about 230.3897424723.

The spelling of 12228957 in words is "twelve million, two hundred twenty-eight thousand, nine hundred fifty-seven".