22189990775512 has 64 divisors (see below), whose sum is σ = 48364210368000. Its totient is φ = 9347205344256.

The previous prime is 22189990775497. The next prime is 22189990775609. The reversal of 22189990775512 is 21557709998122.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 18778189 + ... + 19924867.

It is an arithmetic number, because the mean of its divisors is an integer number (755690787000).

Almost surely, 2^{22189990775512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22189990775512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24182105184000).

22189990775512 is an abundant number, since it is smaller than the sum of its proper divisors (26174219592488).

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

22189990775512 is a wasteful number, since it uses less digits than its factorization.

22189990775512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152608 (or 1152604 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 67.

The spelling of 22189990775512 in words is "twenty-two trillion, one hundred eighty-nine billion, nine hundred ninety million, seven hundred seventy-five thousand, five hundred twelve".