222061165 has 4 divisors (see below), whose sum is σ = 266473404. Its totient is φ = 177648928.

The previous prime is 222061163. The next prime is 222061171. The reversal of 222061165 is 561160222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51523684 + 170537481 = 7178^2 + 13059^2 .

It is a cyclic number.

It is not a de Polignac number, because 222061165 - 2¹ = 222061163 is a prime.

It is a super-2 number, since 2×222061165² = 98622322002314450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222061163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22206112 + ... + 22206121.

It is an arithmetic number, because the mean of its divisors is an integer number (66618351).

Almost surely, 2^222061165 is an apocalyptic number.

It is an amenable number.

222061165 is a deficient number, since it is larger than the sum of its proper divisors (44412239).

222061165 is an equidigital number, since it uses as much as digits as its factorization.

222061165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44412238.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 222061165 is about 14901.7168473971. The cubic root of 222061165 is about 605.5604987143.

The spelling of 222061165 in words is "two hundred twenty-two million, sixty-one thousand, one hundred sixty-five".