22579022220721 has 4 divisors (see below), whose sum is σ = 22630455073600. Its totient is φ = 22527589367844.

The previous prime is 22579022220709. The next prime is 22579022220737. The reversal of 22579022220721 is 12702222097522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22579022220721 - 2²³ = 22579013832113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22579022220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25716425781 + ... + 25716426658.

It is an arithmetic number, because the mean of its divisors is an integer number (5657613768400).

Almost surely, 2^{22579022220721} is an apocalyptic number.

It is an amenable number.

22579022220721 is a deficient number, since it is larger than the sum of its proper divisors (51432852879).

22579022220721 is an equidigital number, since it uses as much as digits as its factorization.

22579022220721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51432852878.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 22579022220721 in words is "twenty-two trillion, five hundred seventy-nine billion, twenty-two million, two hundred twenty thousand, seven hundred twenty-one".