22130177920 has 32 divisors (see below), whose sum is σ = 52904958120. Its totient is φ = 8852070912.

The previous prime is 22130177911. The next prime is 22130177957. The reversal of 22130177920 is 2977103122.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17288562 + ... + 17289841.

Almost surely, 2^22130177920 is an apocalyptic number.

22130177920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22130177920 is an abundant number, since it is smaller than the sum of its proper divisors (30774780200).

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

22130177920 is an equidigital number, since it uses as much as digits as its factorization.

22130177920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34578422 (or 34578410 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 22130177920 in words is "twenty-two billion, one hundred thirty million, one hundred seventy-seven thousand, nine hundred twenty".