12212904 has 32 divisors (see below), whose sum is σ = 33308640. Its totient is φ = 3700800.

The previous prime is 12212899. The next prime is 12212917. The reversal of 12212904 is 40921221.

12212904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12212904² = 298310048226432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22867 + ... + 23394.

It is an arithmetic number, because the mean of its divisors is an integer number (1040895).

Almost surely, 2^12212904 is an apocalyptic number.

It is an amenable number.

12212904 is an abundant number, since it is smaller than the sum of its proper divisors (21095736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212904 is a wasteful number, since it uses less digits than its factorization.

12212904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46281 (or 46277 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 12212904 is about 3494.6965533505. The cubic root of 12212904 is about 230.2888871544.

The spelling of 12212904 in words is "twelve million, two hundred twelve thousand, nine hundred four".