222911 has 6 divisors (see below), whose sum is σ = 241560. Its totient is φ = 205608.

The previous prime is 222883. The next prime is 222913. The reversal of 222911 is 119222.

It is not a de Polignac number, because 222911 - 2¹⁴ = 206527 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 222911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 491 + ... + 828.

It is an arithmetic number, because the mean of its divisors is an integer number (40260).

2²²²⁹¹¹ is an apocalyptic number.

222911 is a deficient number, since it is larger than the sum of its proper divisors (18649).

222911 is a wasteful number, since it uses less digits than its factorization.

222911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1332 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 222911 is about 472.1345147307. The cubic root of 222911 is about 60.6332014979.

The spelling of 222911 in words is "two hundred twenty-two thousand, nine hundred eleven".