22030720188 has 12 divisors (see below), whose sum is σ = 51405013800. Its totient is φ = 7343573392.

The previous prime is 22030720181. The next prime is 22030720193. The reversal of 22030720188 is 88102703022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030720181) 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, 917946663 + ... + 917946686.

It is an arithmetic number, because the mean of its divisors is an integer number (4283751150).

Almost surely, 2^22030720188 is an apocalyptic number.

It is an amenable number.

22030720188 is an abundant number, since it is smaller than the sum of its proper divisors (29374293612).

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

22030720188 is a wasteful number, since it uses less digits than its factorization.

22030720188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835893356 (or 1835893354 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 22030720188 in words is "twenty-two billion, thirty million, seven hundred twenty thousand, one hundred eighty-eight".