22312231032 has 128 divisors (see below), whose sum is σ = 69002841600. Its totient is φ = 5854560768.

The previous prime is 22312230989. The next prime is 22312231099. The reversal of 22312231032 is 23013221322.

It is a happy number.

It is a super-3 number, since 3×22312231032³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404319 + ... + 456177.

It is an arithmetic number, because the mean of its divisors is an integer number (539084700).

Almost surely, 2^22312231032 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 22312231032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34501420800).

22312231032 is an abundant number, since it is smaller than the sum of its proper divisors (46690610568).

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

22312231032 is a wasteful number, since it uses less digits than its factorization.

22312231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52085 (or 52081 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22312231032 its reverse (23013221322), we get a palindrome (45325452354).

The spelling of 22312231032 in words is "twenty-two billion, three hundred twelve million, two hundred thirty-one thousand, thirty-two".