222657231 has 16 divisors (see below), whose sum is σ = 305420288. Its totient is φ = 144180000.

The previous prime is 222657229. The next prime is 222657233. The reversal of 222657231 is 132756222.

It is an interprime number because it is at equal distance from previous prime (222657229) and next prime (222657233).

It is not a de Polignac number, because 222657231 - 2¹ = 222657229 is a prime.

It is a super-2 number, since 2×222657231² = 99152485033174722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222657233) 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, 82026 + ... + 84696.

It is an arithmetic number, because the mean of its divisors is an integer number (19088768).

Almost surely, 2^222657231 is an apocalyptic number.

222657231 is a deficient number, since it is larger than the sum of its proper divisors (82763057).

222657231 is a wasteful number, since it uses less digits than its factorization.

222657231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462.

The product of its digits is 10080, while the sum is 30.

The square root of 222657231 is about 14921.7033545102. The cubic root of 222657231 is about 606.1018383677.

The spelling of 222657231 in words is "two hundred twenty-two million, six hundred fifty-seven thousand, two hundred thirty-one".