222663 has 16 divisors (see below), whose sum is σ = 354816. Its totient is φ = 121440.

The previous prime is 222659. The next prime is 222679. The reversal of 222663 is 366222.

It is not a de Polignac number, because 222663 - 2² = 222659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (22176).

2²²²⁶⁶³ is an apocalyptic number.

222663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

222663 is a deficient number, since it is larger than the sum of its proper divisors (132153).

222663 is a wasteful number, since it uses less digits than its factorization.

222663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494.

The product of its digits is 864, while the sum is 21.

The square root of 222663 is about 471.8718046249. The cubic root of 222663 is about 60.6107072978.

Adding to 222663 its reverse (366222), we get a palindrome (588885).

The spelling of 222663 in words is "two hundred twenty-two thousand, six hundred sixty-three".