222131222 has 4 divisors (see below), whose sum is σ = 333196836. Its totient is φ = 111065610.

The previous prime is 222131201. The next prime is 222131233.

222131222 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222131222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55532804 + ... + 55532807.

It is an arithmetic number, because the mean of its divisors is an integer number (83299209).

Almost surely, 2^222131222 is an apocalyptic number.

222131222 is a deficient number, since it is larger than the sum of its proper divisors (111065614).

222131222 is a wasteful number, since it uses less digits than its factorization.

222131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111065613.

The product of its digits is 192, while the sum is 17.

The square root of 222131222 is about 14904.0672972179. The cubic root of 222131222 is about 605.6241738002.

Multiplying 222131222 by its product of digits (192), we get a palindrome (42649194624).

The spelling of 222131222 in words is "two hundred twenty-two million, one hundred thirty-one thousand, two hundred twenty-two".