22222221880 has 64 divisors (see below), whose sum is σ = 52196451840. Its totient is φ = 8498742912.

The previous prime is 22222221871. The next prime is 22222221907. The reversal of 22222221880 is 8812222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3186157 + ... + 3193123.

It is an arithmetic number, because the mean of its divisors is an integer number (815569560).

Almost surely, 2^22222221880 is an apocalyptic number.

22222221880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222221880 is an abundant number, since it is smaller than the sum of its proper divisors (29974229960).

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

22222221880 is a wasteful number, since it uses less digits than its factorization.

22222221880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10468 (or 10464 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The spelling of 22222221880 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, eight hundred eighty".