22130312232 has 64 divisors (see below), whose sum is σ = 64699937280. Its totient is φ = 6175899072.

The previous prime is 22130312227. The next prime is 22130312257. The reversal of 22130312232 is 23221303122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22130312199 and 22130312208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1524498 + ... + 1538945.

It is an arithmetic number, because the mean of its divisors is an integer number (1010936520).

Almost surely, 2^22130312232 is an apocalyptic number.

It is an amenable number.

22130312232 is an abundant number, since it is smaller than the sum of its proper divisors (42569625048).

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

22130312232 is a wasteful number, since it uses less digits than its factorization.

22130312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063502 (or 3063498 counting only the distinct ones).

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

Adding to 22130312232 its reverse (23221303122), we get a palindrome (45351615354).

The spelling of 22130312232 in words is "twenty-two billion, one hundred thirty million, three hundred twelve thousand, two hundred thirty-two".