22331131128 has 96 divisors (see below), whose sum is σ = 60964363200. Its totient is φ = 7384276224.

The previous prime is 22331131117. The next prime is 22331131241. The reversal of 22331131128 is 82113113322.

22331131128 is a `hidden beast` number, since 223 + 311 + 3 + 1 + 128 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9369825 + ... + 9372207.

It is an arithmetic number, because the mean of its divisors is an integer number (635045450).

Almost surely, 2^22331131128 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 22331131128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30482181600).

22331131128 is an abundant number, since it is smaller than the sum of its proper divisors (38633232072).

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

22331131128 is a wasteful number, since it uses less digits than its factorization.

22331131128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3374 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The spelling of 22331131128 in words is "twenty-two billion, three hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty-eight".