222240231 has 24 divisors (see below), whose sum is σ = 325044720. Its totient is φ = 146313216.

The previous prime is 222240223. The next prime is 222240247. The reversal of 222240231 is 132042222.

It is not a de Polignac number, because 222240231 - 2³ = 222240223 is a prime.

It is a super-2 number, since 2×222240231² = 98781440549866722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222240331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288615 + ... + 289383.

It is an arithmetic number, because the mean of its divisors is an integer number (13543530).

Almost surely, 2^222240231 is an apocalyptic number.

222240231 is a deficient number, since it is larger than the sum of its proper divisors (102804489).

222240231 is a wasteful number, since it uses less digits than its factorization.

222240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222240231 is about 14907.7238705310. The cubic root of 222240231 is about 605.7232258959.

Adding to 222240231 its reverse (132042222), we get a palindrome (354282453).

The spelling of 222240231 in words is "two hundred twenty-two million, two hundred forty thousand, two hundred thirty-one".