22027534572 has 12 divisors (see below), whose sum is σ = 51397580696. Its totient is φ = 7342511520.

The previous prime is 22027534549. The next prime is 22027534609. The reversal of 22027534572 is 27543572022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22027534572.

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, 917813929 + ... + 917813952.

Almost surely, 2^22027534572 is an apocalyptic number.

It is an amenable number.

22027534572 is an abundant number, since it is smaller than the sum of its proper divisors (29370046124).

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

22027534572 is a wasteful number, since it uses less digits than its factorization.

22027534572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835627888 (or 1835627886 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 22027534572 in words is "twenty-two billion, twenty-seven million, five hundred thirty-four thousand, five hundred seventy-two".