22112520644 has 24 divisors (see below), whose sum is σ = 40761265440. Its totient is φ = 10467235584.

The previous prime is 22112520637. The next prime is 22112520697. The reversal of 22112520644 is 44602521122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14612 + ... + 210804.

It is an arithmetic number, because the mean of its divisors is an integer number (1698386060).

Almost surely, 2^22112520644 is an apocalyptic number.

It is an amenable number.

22112520644 is a deficient number, since it is larger than the sum of its proper divisors (18648744796).

22112520644 is a wasteful number, since it uses less digits than its factorization.

22112520644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197699 (or 197697 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 22112520644 in words is "twenty-two billion, one hundred twelve million, five hundred twenty thousand, six hundred forty-four".