13022020172 has 12 divisors (see below), whose sum is σ = 26044040400. Its totient is φ = 5580865776.

The previous prime is 13022020171. The next prime is 13022020181. The reversal of 13022020172 is 27102022031.

13022020172 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13022020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232536047 + ... + 232536102.

It is an arithmetic number, because the mean of its divisors is an integer number (2170336700).

Almost surely, 2^13022020172 is an apocalyptic number.

It is an amenable number.

13022020172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13022020172 is a wasteful number, since it uses less digits than its factorization.

13022020172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465072160 (or 465072158 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The spelling of 13022020172 in words is "thirteen billion, twenty-two million, twenty thousand, one hundred seventy-two".