222223131 has 12 divisors (see below), whose sum is σ = 345680608. Its totient is φ = 136752624.

The previous prime is 222223109. The next prime is 222223151. The reversal of 222223131 is 131322222.

It is not a de Polignac number, because 222223131 - 2¹⁹ = 221698843 is a prime.

It is a super-2 number, since 2×222223131² = 98766239902886322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222223151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949555 + ... + 949788.

Almost surely, 2^222223131 is an apocalyptic number.

222223131 is a deficient number, since it is larger than the sum of its proper divisors (123457477).

222223131 is a wasteful number, since it uses less digits than its factorization.

222223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899362 (or 1899359 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222223131 is about 14907.1503313007. The cubic root of 222223131 is about 605.7076899557.

Adding to 222223131 its reverse (131322222), we get a palindrome (353545353).

Subtracting from 222223131 its reverse (131322222), we obtain a palindrome (90900909).

The spelling of 222223131 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-one".