22521486404 has 12 divisors (see below), whose sum is σ = 39425677200. Its totient is φ = 11257007208.

The previous prime is 22521486373. The next prime is 22521486433. The reversal of 22521486404 is 40468412522.

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, 920414 + ... + 944565.

It is an arithmetic number, because the mean of its divisors is an integer number (3285473100).

Almost surely, 2^22521486404 is an apocalyptic number.

It is an amenable number.

22521486404 is a deficient number, since it is larger than the sum of its proper divisors (16904190796).

22521486404 is a wasteful number, since it uses less digits than its factorization.

22521486404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868002 (or 1868000 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

Adding to 22521486404 its reverse (40468412522), we get a palindrome (62989898926).

The spelling of 22521486404 in words is "twenty-two billion, five hundred twenty-one million, four hundred eighty-six thousand, four hundred four".