222426985 has 16 divisors (see below), whose sum is σ = 295171200. Its totient is φ = 159546240.

The previous prime is 222426973. The next prime is 222426989. The reversal of 222426985 is 589624222.

It is not a de Polignac number, because 222426985 - 2⁷ = 222426857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222426989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23685 + ... + 31714.

It is an arithmetic number, because the mean of its divisors is an integer number (18448200).

Almost surely, 2^222426985 is an apocalyptic number.

It is an amenable number.

222426985 is a deficient number, since it is larger than the sum of its proper divisors (72744215).

222426985 is a wasteful number, since it uses less digits than its factorization.

222426985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55488.

The product of its digits is 138240, while the sum is 40.

The square root of 222426985 is about 14913.9862209940. The cubic root of 222426985 is about 605.8928464958.

The spelling of 222426985 in words is "two hundred twenty-two million, four hundred twenty-six thousand, nine hundred eighty-five".