22155131392 has 80 divisors (see below), whose sum is σ = 45868537440. Its totient is φ = 10678054912.

The previous prime is 22155131387. The next prime is 22155131399. The reversal of 22155131392 is 29313155122.

It is not an unprimeable number, because it can be changed into a prime (22155131399) 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, 17267583 + ... + 17268865.

It is an arithmetic number, because the mean of its divisors is an integer number (573356718).

Almost surely, 2^22155131392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22155131392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22934268720).

22155131392 is an abundant number, since it is smaller than the sum of its proper divisors (23713406048).

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

22155131392 is a wasteful number, since it uses less digits than its factorization.

22155131392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2477 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The spelling of 22155131392 in words is "twenty-two billion, one hundred fifty-five million, one hundred thirty-one thousand, three hundred ninety-two".