22556120 has 32 divisors (see below), whose sum is σ = 50889600. Its totient is φ = 8997888.

The previous prime is 22556117. The next prime is 22556137. The reversal of 22556120 is 2165522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23816 + ... + 24744.

It is an arithmetic number, because the mean of its divisors is an integer number (1590300).

Almost surely, 2^22556120 is an apocalyptic number.

22556120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22556120 is an abundant number, since it is smaller than the sum of its proper divisors (28333480).

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

22556120 is a wasteful number, since it uses less digits than its factorization.

22556120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 22556120 is about 4749.3283735703. The cubic root of 22556120 is about 282.5453290877.

The spelling of 22556120 in words is "twenty-two million, five hundred fifty-six thousand, one hundred twenty".