222251140 has 12 divisors (see below), whose sum is σ = 466727436. Its totient is φ = 88900448.

The previous prime is 222251137. The next prime is 222251177. The reversal of 222251140 is 41152222.

It can be written as a sum of positive squares in 2 ways, for example, as 70862724 + 151388416 = 8418^2 + 12304^2 .

It is an unprimeable number.

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, 5556259 + ... + 5556298.

It is an arithmetic number, because the mean of its divisors is an integer number (38893953).

Almost surely, 2^222251140 is an apocalyptic number.

222251140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222251140 is an abundant number, since it is smaller than the sum of its proper divisors (244476296).

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

222251140 is a wasteful number, since it uses less digits than its factorization.

222251140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112566 (or 11112564 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 222251140 is about 14908.0897501994. The cubic root of 222251140 is about 605.7331366826.

The spelling of 222251140 in words is "two hundred twenty-two million, two hundred fifty-one thousand, one hundred forty".