22291087204 has 27 divisors (see below), whose sum is σ = 41181069657. Its totient is φ = 10556248608.

The previous prime is 22291087187. The next prime is 22291087237. The reversal of 22291087204 is 40278019222.

The square root of 22291087204 is 149302.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3158664804 + 19132422400 = 56202^2 + 138320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5671512 + ... + 5675440.

Almost surely, 2^22291087204 is an apocalyptic number.

22291087204 is the 149302-nd square number.

It is an amenable number.

22291087204 is a deficient number, since it is larger than the sum of its proper divisors (18889982453).

22291087204 is an frugal number, since it uses more digits than its factorization.

22291087204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7900 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 22291087204 in words is "twenty-two billion, two hundred ninety-one million, eighty-seven thousand, two hundred four".