222455231 has 4 divisors (see below), whose sum is σ = 225271200. Its totient is φ = 219639264.

The previous prime is 222455203. The next prime is 222455243. The reversal of 222455231 is 132554222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222455231 - 2¹⁴ = 222438847 is a prime.

It is a super-2 number, since 2×222455231² = 98972659598526722, 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 222455231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222455281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407866 + ... + 1408023.

It is an arithmetic number, because the mean of its divisors is an integer number (56317800).

Almost surely, 2^222455231 is an apocalyptic number.

222455231 is a deficient number, since it is larger than the sum of its proper divisors (2815969).

222455231 is an equidigital number, since it uses as much as digits as its factorization.

222455231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815968.

The product of its digits is 4800, while the sum is 26.

The square root of 222455231 is about 14914.9331543926. The cubic root of 222455231 is about 605.9184928518.

The spelling of 222455231 in words is "two hundred twenty-two million, four hundred fifty-five thousand, two hundred thirty-one".