22122904 has 8 divisors (see below), whose sum is σ = 41480460. Its totient is φ = 11061448.

The previous prime is 22122901. The next prime is 22122917. The reversal of 22122904 is 40922122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382674 + ... + 1382689.

Almost surely, 2^22122904 is an apocalyptic number.

It is an amenable number.

22122904 is a deficient number, since it is larger than the sum of its proper divisors (19357556).

22122904 is a wasteful number, since it uses less digits than its factorization.

22122904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765369 (or 2765365 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22122904 is about 4703.4991229934. The cubic root of 22122904 is about 280.7247550705.

The spelling of 22122904 in words is "twenty-two million, one hundred twenty-two thousand, nine hundred four".