22122804 has 24 divisors (see below), whose sum is σ = 56312928. Its totient is φ = 6703840.

The previous prime is 22122773. The next prime is 22122827. The reversal of 22122804 is 40822122.

It is a happy number.

It is a congruent number.

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, 83667 + ... + 83930.

It is an arithmetic number, because the mean of its divisors is an integer number (2346372).

Almost surely, 2^22122804 is an apocalyptic number.

It is an amenable number.

22122804 is an abundant number, since it is smaller than the sum of its proper divisors (34190124).

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

22122804 is a wasteful number, since it uses less digits than its factorization.

22122804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167615 (or 167613 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 22122804 is about 4703.4884925978. The cubic root of 22122804 is about 280.7243320923.

Adding to 22122804 its reverse (40822122), we get a palindrome (62944926).

The spelling of 22122804 in words is "twenty-two million, one hundred twenty-two thousand, eight hundred four".