222365 has 16 divisors (see below), whose sum is σ = 314496. Its totient is φ = 148800.

The previous prime is 222361. The next prime is 222367. The reversal of 222365 is 563222.

It is a happy number.

It is not a de Polignac number, because 222365 - 2² = 222361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560 + ... + 870.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2²²²³⁶⁵ is an apocalyptic number.

It is an amenable number.

222365 is a deficient number, since it is larger than the sum of its proper divisors (92131).

222365 is a wasteful number, since it uses less digits than its factorization.

222365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its digits is 720, while the sum is 20.

The square root of 222365 is about 471.5559351763. Note that the first 3 decimals coincide. The cubic root of 222365 is about 60.5836558725.

Adding to 222365 its reverse (563222), we get a palindrome (785587).

The spelling of 222365 in words is "two hundred twenty-two thousand, three hundred sixty-five".