22113132220 has 12 divisors (see below), whose sum is σ = 46437577704. Its totient is φ = 8845252880.

The previous prime is 22113132169. The next prime is 22113132221. The reversal of 22113132220 is 2223131122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113132221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552828286 + ... + 552828325.

It is an arithmetic number, because the mean of its divisors is an integer number (3869798142).

Almost surely, 2^22113132220 is an apocalyptic number.

22113132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22113132220 is an abundant number, since it is smaller than the sum of its proper divisors (24324445484).

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

22113132220 is a wasteful number, since it uses less digits than its factorization.

22113132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105656620 (or 1105656618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22113132220 its reverse (2223131122), we get a palindrome (24336263342).

The spelling of 22113132220 in words is "twenty-two billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred twenty".