222263999 has 4 divisors (see below), whose sum is σ = 223548936. Its totient is φ = 220979064.

The previous prime is 222263989. The next prime is 222264013. The reversal of 222263999 is 999362222.

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

It is a cyclic number.

It is not a de Polignac number, because 222263999 - 2²⁴ = 205486783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222263929) 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, 642209 + ... + 642554.

It is an arithmetic number, because the mean of its divisors is an integer number (55887234).

Almost surely, 2^222263999 is an apocalyptic number.

222263999 is a deficient number, since it is larger than the sum of its proper divisors (1284937).

222263999 is a wasteful number, since it uses less digits than its factorization.

222263999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284936.

The product of its digits is 209952, while the sum is 44.

The square root of 222263999 is about 14908.5210198732. The cubic root of 222263999 is about 605.7448186207.

The spelling of 222263999 in words is "two hundred twenty-two million, two hundred sixty-three thousand, nine hundred ninety-nine".