222685 has 4 divisors (see below), whose sum is σ = 267228. Its totient is φ = 178144.

The previous prime is 222679. The next prime is 222707. The reversal of 222685 is 586222.

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 174724 + 47961 = 418^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 222685 - 2⁷ = 222557 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 22264 + ... + 22273.

It is an arithmetic number, because the mean of its divisors is an integer number (66807).

2²²²⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

222685 is a deficient number, since it is larger than the sum of its proper divisors (44543).

222685 is an equidigital number, since it uses as much as digits as its factorization.

222685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542.

The product of its digits is 1920, while the sum is 25.

The square root of 222685 is about 471.8951154653. The cubic root of 222685 is about 60.6127034259.

The spelling of 222685 in words is "two hundred twenty-two thousand, six hundred eighty-five".