22108252188 has 72 divisors (see below), whose sum is σ = 59167269504. Its totient is φ = 6408179360.

The previous prime is 22108252151. The next prime is 22108252189. The reversal of 22108252188 is 88125280122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22108252189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297606 + ... + 364397.

It is an arithmetic number, because the mean of its divisors is an integer number (821767632).

Almost surely, 2^22108252188 is an apocalyptic number.

It is an amenable number.

22108252188 is an abundant number, since it is smaller than the sum of its proper divisors (37059017316).

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

22108252188 is a wasteful number, since it uses less digits than its factorization.

22108252188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662055 (or 662042 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 22108252188 in words is "twenty-two billion, one hundred eight million, two hundred fifty-two thousand, one hundred eighty-eight".