22220188372 has 12 divisors (see below), whose sum is σ = 39169165140. Its totient is φ = 11028998336.

The previous prime is 22220188337. The next prime is 22220188391. The reversal of 22220188372 is 27388102222.

It can be written as a sum of positive squares in 2 ways, for example, as 6765720516 + 15454467856 = 82254^2 + 124316^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20273347 + ... + 20274442.

It is an arithmetic number, because the mean of its divisors is an integer number (3264097095).

Almost surely, 2^22220188372 is an apocalyptic number.

It is an amenable number.

22220188372 is a deficient number, since it is larger than the sum of its proper divisors (16948976768).

22220188372 is a wasteful number, since it uses less digits than its factorization.

22220188372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40547930 (or 40547928 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 22220188372 in words is "twenty-two billion, two hundred twenty million, one hundred eighty-eight thousand, three hundred seventy-two".