22130344432 has 40 divisors (see below), whose sum is σ = 49693105152. Its totient is φ = 9350846400.

The previous prime is 22130344417. The next prime is 22130344477. The reversal of 22130344432 is 23444303122.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 22130344432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383544 + ... + 1399447.

Almost surely, 2^22130344432 is an apocalyptic number.

It is an amenable number.

22130344432 is an abundant number, since it is smaller than the sum of its proper divisors (27562760720).

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

22130344432 is a wasteful number, since it uses less digits than its factorization.

22130344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783077 (or 2783071 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 22130344432 its reverse (23444303122), we get a palindrome (45574647554).

The spelling of 22130344432 in words is "twenty-two billion, one hundred thirty million, three hundred forty-four thousand, four hundred thirty-two".