222202180 has 12 divisors (see below), whose sum is σ = 466624620. Its totient is φ = 88880864.

The previous prime is 222202171. The next prime is 222202181. The reversal of 222202180 is 81202222.

It can be written as a sum of positive squares in 2 ways, for example, as 88059456 + 134142724 = 9384^2 + 11582^2 .

It is not an unprimeable number, because it can be changed into a prime (222202181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5555035 + ... + 5555074.

It is an arithmetic number, because the mean of its divisors is an integer number (38885385).

Almost surely, 2^222202180 is an apocalyptic number.

222202180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202180 is an abundant number, since it is smaller than the sum of its proper divisors (244422440).

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

222202180 is a wasteful number, since it uses less digits than its factorization.

222202180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110118 (or 11110116 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 222202180 is about 14906.4475982710. The cubic root of 222202180 is about 605.6886541625.

The spelling of 222202180 in words is "two hundred twenty-two million, two hundred two thousand, one hundred eighty".