22102180 has 12 divisors (see below), whose sum is σ = 46414620. Its totient is φ = 8840864.

The previous prime is 22102169. The next prime is 22102211. The reversal of 22102180 is 8120122.

It can be written as a sum of positive squares in 2 ways, for example, as 7171684 + 14930496 = 2678^2 + 3864^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552535 + ... + 552574.

It is an arithmetic number, because the mean of its divisors is an integer number (3867885).

Almost surely, 2^22102180 is an apocalyptic number.

22102180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102180 is an abundant number, since it is smaller than the sum of its proper divisors (24312440).

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

22102180 is a wasteful number, since it uses less digits than its factorization.

22102180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105118 (or 1105116 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 22102180 is about 4701.2955661179. The cubic root of 22102180 is about 280.6370698162.

The spelling of 22102180 in words is "twenty-two million, one hundred two thousand, one hundred eighty".