222387 has 16 divisors (see below), whose sum is σ = 338688. Its totient is φ = 128480.

The previous prime is 222379. The next prime is 222389. The reversal of 222387 is 783222.

It is not a de Polignac number, because 222387 - 2³ = 222379 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (222389) 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, 613 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (21168).

2²²²³⁸⁷ is an apocalyptic number.

222387 is a deficient number, since it is larger than the sum of its proper divisors (116301).

222387 is a wasteful number, since it uses less digits than its factorization.

222387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its digits is 1344, while the sum is 24.

The square root of 222387 is about 471.5792616305. The cubic root of 222387 is about 60.5856537836.

The spelling of 222387 in words is "two hundred twenty-two thousand, three hundred eighty-seven".