222912163 has 4 divisors (see below), whose sum is σ = 223122928. Its totient is φ = 222701400.

The previous prime is 222912139. The next prime is 222912229. The reversal of 222912163 is 361219222.

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 222912163 - 2²¹ = 220815011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222912863) 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, 103788 + ... + 105913.

It is an arithmetic number, because the mean of its divisors is an integer number (55780732).

Almost surely, 2^222912163 is an apocalyptic number.

222912163 is a deficient number, since it is larger than the sum of its proper divisors (210765).

222912163 is a wasteful number, since it uses less digits than its factorization.

222912163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210764.

The product of its digits is 2592, while the sum is 28.

The square root of 222912163 is about 14930.2432331158. The cubic root of 222912163 is about 606.3330694547. Note that the first 3 decimals are identical.

The spelling of 222912163 in words is "two hundred twenty-two million, nine hundred twelve thousand, one hundred sixty-three".