22100233220 has 48 divisors (see below), whose sum is σ = 50006354160. Its totient is φ = 8155869696.

The previous prime is 22100233171. The next prime is 22100233247. The reversal of 22100233220 is 2233200122.

It can be written as a sum of positive squares in 8 ways, for example, as 2092696516 + 20007536704 = 45746^2 + 141448^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 506594 + ... + 548486.

It is an arithmetic number, because the mean of its divisors is an integer number (1041799045).

Almost surely, 2^22100233220 is an apocalyptic number.

22100233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100233220 is an abundant number, since it is smaller than the sum of its proper divisors (27906120940).

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

22100233220 is a wasteful number, since it uses less digits than its factorization.

22100233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43944 (or 43942 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22100233220 its reverse (2233200122), we get a palindrome (24333433342).

The spelling of 22100233220 in words is "twenty-two billion, one hundred million, two hundred thirty-three thousand, two hundred twenty".