22181640522 has 16 divisors (see below), whose sum is σ = 44364775680. Its totient is φ = 7393631072.

The previous prime is 22181640479. The next prime is 22181640529. The reversal of 22181640522 is 22504618122.

It is not an unprimeable number, because it can be changed into a prime (22181640529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254983 + ... + 330725.

It is an arithmetic number, because the mean of its divisors is an integer number (2772798480).

Almost surely, 2^22181640522 is an apocalyptic number.

22181640522 is an abundant number, since it is smaller than the sum of its proper divisors (22183135158).

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

22181640522 is a wasteful number, since it uses less digits than its factorization.

22181640522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124557.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 22181640522 in words is "twenty-two billion, one hundred eighty-one million, six hundred forty thousand, five hundred twenty-two".