22132022440 has 64 divisors (see below), whose sum is σ = 55214680320. Its totient is φ = 7916064000.

The previous prime is 22132022399. The next prime is 22132022443. The reversal of 22132022440 is 4422023122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22132022443) 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, 385456 + ... + 439135.

It is an arithmetic number, because the mean of its divisors is an integer number (862729380).

Almost surely, 2^22132022440 is an apocalyptic number.

22132022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22132022440 is an abundant number, since it is smaller than the sum of its proper divisors (33082657880).

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

22132022440 is a wasteful number, since it uses less digits than its factorization.

22132022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824674 (or 824670 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22132022440 its reverse (4422023122), we get a palindrome (26554045562).

The spelling of 22132022440 in words is "twenty-two billion, one hundred thirty-two million, twenty-two thousand, four hundred forty".