222347985 has 32 divisors (see below), whose sum is σ = 372314880. Its totient is φ = 113188608.

The previous prime is 222347963. The next prime is 222348041. The reversal of 222347985 is 589743222.

It is not a de Polignac number, because 222347985 - 2⁸ = 222347729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25636 + ... + 33194.

It is an arithmetic number, because the mean of its divisors is an integer number (11634840).

Almost surely, 2^222347985 is an apocalyptic number.

It is an amenable number.

222347985 is a deficient number, since it is larger than the sum of its proper divisors (149966895).

222347985 is a wasteful number, since it uses less digits than its factorization.

222347985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657.

The product of its digits is 241920, while the sum is 42.

The square root of 222347985 is about 14911.3374651639. The cubic root of 222347985 is about 605.8211057957.

The spelling of 222347985 in words is "two hundred twenty-two million, three hundred forty-seven thousand, nine hundred eighty-five".