222342160 has 20 divisors (see below), whose sum is σ = 516945708. Its totient is φ = 88936832.

The previous prime is 222342157. The next prime is 222342223. The reversal of 222342160 is 61243222.

It can be written as a sum of positive squares in 2 ways, for example, as 171191056 + 51151104 = 13084^2 + 7152^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×222342160² = 98872072226931200, which contains 22 as substring.

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, 1389559 + ... + 1389718.

Almost surely, 2^222342160 is an apocalyptic number.

222342160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222342160 is an abundant number, since it is smaller than the sum of its proper divisors (294603548).

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

222342160 is a wasteful number, since it uses less digits than its factorization.

222342160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779290 (or 2779284 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 222342160 is about 14911.1421427066. The cubic root of 222342160 is about 605.8158153816.

Adding to 222342160 its reverse (61243222), we get a palindrome (283585382).

The spelling of 222342160 in words is "two hundred twenty-two million, three hundred forty-two thousand, one hundred sixty".