22521722316 has 72 divisors (see below), whose sum is σ = 53546036544. Its totient is φ = 7366597920.

The previous prime is 22521722299. The next prime is 22521722323. The reversal of 22521722316 is 61322712522.

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 23 ways as a sum of consecutive naturals, for example, 39442311 + ... + 39442881.

It is an arithmetic number, because the mean of its divisors is an integer number (743694952).

Almost surely, 2^22521722316 is an apocalyptic number.

It is an amenable number.

22521722316 is an abundant number, since it is smaller than the sum of its proper divisors (31024314228).

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

22521722316 is a wasteful number, since it uses less digits than its factorization.

22521722316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 858 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The spelling of 22521722316 in words is "twenty-two billion, five hundred twenty-one million, seven hundred twenty-two thousand, three hundred sixteen".