22155043232 has 48 divisors (see below), whose sum is σ = 51567788160. Its totient is φ = 9167601408.

The previous prime is 22155043201. The next prime is 22155043237. The reversal of 22155043232 is 23234055122.

It is a super-2 number, since 2×22155043232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 22155043195 and 22155043204.

It is not an unprimeable number, because it can be changed into a prime (22155043237) 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, 1698788 + ... + 1711779.

It is an arithmetic number, because the mean of its divisors is an integer number (1074328920).

Almost surely, 2^22155043232 is an apocalyptic number.

It is an amenable number.

22155043232 is an abundant number, since it is smaller than the sum of its proper divisors (29412744928).

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

22155043232 is a wasteful number, since it uses less digits than its factorization.

22155043232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410613 (or 3410605 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22155043232 its reverse (23234055122), we get a palindrome (45389098354).

The spelling of 22155043232 in words is "twenty-two billion, one hundred fifty-five million, forty-three thousand, two hundred thirty-two".