22012942688 has 24 divisors (see below), whose sum is σ = 47277798120. Its totient is φ = 10005882880.

The previous prime is 22012942687. The next prime is 22012942723. The reversal of 22012942688 is 88624921022.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012942687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31268033 + ... + 31268736.

It is an arithmetic number, because the mean of its divisors is an integer number (1969908255).

Almost surely, 2^22012942688 is an apocalyptic number.

It is an amenable number.

22012942688 is an abundant number, since it is smaller than the sum of its proper divisors (25264855432).

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

22012942688 is a wasteful number, since it uses less digits than its factorization.

22012942688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62536790 (or 62536782 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 22012942688 in words is "twenty-two billion, twelve million, nine hundred forty-two thousand, six hundred eighty-eight".