23922221828 has 12 divisors (see below), whose sum is σ = 42653773260. Its totient is φ = 11735429472.

The previous prime is 23922221819. The next prime is 23922221893. The reversal of 23922221828 is 82812222932.

It can be written as a sum of positive squares in 2 ways, for example, as 18025210564 + 5897011264 = 134258^2 + 76792^2 .

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, 56420123 + ... + 56420546.

It is an arithmetic number, because the mean of its divisors is an integer number (3554481105).

Almost surely, 2^23922221828 is an apocalyptic number.

It is an amenable number.

23922221828 is a deficient number, since it is larger than the sum of its proper divisors (18731551432).

23922221828 is a wasteful number, since it uses less digits than its factorization.

23922221828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112840726 (or 112840724 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The spelling of 23922221828 in words is "twenty-three billion, nine hundred twenty-two million, two hundred twenty-one thousand, eight hundred twenty-eight".