22112324220 has 96 divisors (see below), whose sum is σ = 70786533888. Its totient is φ = 5052310272.

The previous prime is 22112324161. The next prime is 22112324233. The reversal of 22112324220 is 2242321122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1286322 + ... + 1303398.

It is an arithmetic number, because the mean of its divisors is an integer number (737359728).

Almost surely, 2^22112324220 is an apocalyptic number.

22112324220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112324220 is an abundant number, since it is smaller than the sum of its proper divisors (48674209668).

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

22112324220 is a wasteful number, since it uses less digits than its factorization.

22112324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20179 (or 20177 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22112324220 its reverse (2242321122), we get a palindrome (24354645342).

The spelling of 22112324220 in words is "twenty-two billion, one hundred twelve million, three hundred twenty-four thousand, two hundred twenty".