22221021192 has 32 divisors (see below), whose sum is σ = 55559109600. Its totient is φ = 7406132864.

The previous prime is 22221021191. The next prime is 22221021233. The reversal of 22221021192 is 29112012222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22221021191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172159 + ... + 272177.

It is an arithmetic number, because the mean of its divisors is an integer number (1736222175).

Almost surely, 2^22221021192 is an apocalyptic number.

It is an amenable number.

22221021192 is an abundant number, since it is smaller than the sum of its proper divisors (33338088408).

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

22221021192 is a wasteful number, since it uses less digits than its factorization.

22221021192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109285 (or 109281 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 22221021192 in words is "twenty-two billion, two hundred twenty-one million, twenty-one thousand, one hundred ninety-two".