22130232012 has 108 divisors (see below), whose sum is σ = 67172728896. Its totient is φ = 6118943040.

The previous prime is 22130231989. The next prime is 22130232031. The reversal of 22130232012 is 21023203122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147663 + ... + 257030.

It is an arithmetic number, because the mean of its divisors is an integer number (621969712).

Almost surely, 2^22130232012 is an apocalyptic number.

It is an amenable number.

22130232012 is an abundant number, since it is smaller than the sum of its proper divisors (45042496884).

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

22130232012 is a wasteful number, since it uses less digits than its factorization.

22130232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404748 (or 404736 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22130232012 its reverse (21023203122), we get a palindrome (43153435134).

The spelling of 22130232012 in words is "twenty-two billion, one hundred thirty million, two hundred thirty-two thousand, twelve".