222211131 has 16 divisors (see below), whose sum is σ = 323831808. Its totient is φ = 134928000.

The previous prime is 222211127. The next prime is 222211133. The reversal of 222211131 is 131112222.

It is not a de Polignac number, because 222211131 - 2² = 222211127 is a prime.

It is a super-2 number, since 2×222211131² = 98755573480598322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222211131.

It is not an unprimeable number, because it can be changed into a prime (222211133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68695 + ... + 71856.

It is an arithmetic number, because the mean of its divisors is an integer number (20239488).

Almost surely, 2^222211131 is an apocalyptic number.

222211131 is a deficient number, since it is larger than the sum of its proper divisors (101620677).

222211131 is a wasteful number, since it uses less digits than its factorization.

222211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140602.

The product of its digits is 48, while the sum is 15.

The square root of 222211131 is about 14906.7478344540. The cubic root of 222211131 is about 605.6967870656.

Adding to 222211131 its reverse (131112222), we get a palindrome (353323353).

The spelling of 222211131 in words is "two hundred twenty-two million, two hundred eleven thousand, one hundred thirty-one".