222718231 has 8 divisors (see below), whose sum is σ = 232682400. Its totient is φ = 212906400.

The previous prime is 222718217. The next prime is 222718271. The reversal of 222718231 is 132817222.

222718231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222718231 - 2⁷ = 222718103 is a prime.

It is a super-2 number, since 2×222718231² = 99206820839538722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222718231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222718211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35091 + ... + 40948.

It is an arithmetic number, because the mean of its divisors is an integer number (29085300).

Almost surely, 2^222718231 is an apocalyptic number.

222718231 is a deficient number, since it is larger than the sum of its proper divisors (9964169).

222718231 is a wasteful number, since it uses less digits than its factorization.

222718231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76169.

The product of its digits is 2688, while the sum is 28.

The square root of 222718231 is about 14923.7472171034. The cubic root of 222718231 is about 606.1571832823.

The spelling of 222718231 in words is "two hundred twenty-two million, seven hundred eighteen thousand, two hundred thirty-one".