22572125521 has 16 divisors (see below), whose sum is σ = 24732609408. Its totient is φ = 20429884800.

The previous prime is 22572125519. The next prime is 22572125567. The reversal of 22572125521 is 12552127522.

It is a cyclic number.

It is not a de Polignac number, because 22572125521 - 2¹ = 22572125519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22572125501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3236380 + ... + 3243346.

It is an arithmetic number, because the mean of its divisors is an integer number (1545788088).

Almost surely, 2^22572125521 is an apocalyptic number.

It is an amenable number.

22572125521 is a deficient number, since it is larger than the sum of its proper divisors (2160483887).

22572125521 is a wasteful number, since it uses less digits than its factorization.

22572125521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8232.

The product of its digits is 28000, while the sum is 34.

The spelling of 22572125521 in words is "twenty-two billion, five hundred seventy-two million, one hundred twenty-five thousand, five hundred twenty-one".