22004521252 has 12 divisors (see below), whose sum is σ = 44009042560. Its totient is φ = 9430509096.

The previous prime is 22004521249. The next prime is 22004521283. The reversal of 22004521252 is 25212540022.

22004521252 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392937852 + ... + 392937907.

Almost surely, 2^22004521252 is an apocalyptic number.

It is an amenable number.

22004521252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22004521252 is a wasteful number, since it uses less digits than its factorization.

22004521252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785875770 (or 785875768 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 22004521252 in words is "twenty-two billion, four million, five hundred twenty-one thousand, two hundred fifty-two".