222170944 has 14 divisors (see below), whose sum is σ = 440870594. Its totient is φ = 111085440.

The previous prime is 222170941. The next prime is 222170947. The reversal of 222170944 is 449071222.

It is an interprime number because it is at equal distance from previous prime (222170941) and next prime (222170947).

It can be written as a sum of positive squares in only one way, i.e., 221652544 + 518400 = 14888^2 + 720^2 .

It is a super-2 number, since 2×222170944² = 98719856715702272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222170941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1735647 + ... + 1735774.

Almost surely, 2^222170944 is an apocalyptic number.

It is an amenable number.

222170944 is a deficient number, since it is larger than the sum of its proper divisors (218699650).

222170944 is an equidigital number, since it uses as much as digits as its factorization.

222170944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471433 (or 3471423 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 222170944 is about 14905.3998269084. The cubic root of 222170944 is about 605.6602713366.

The spelling of 222170944 in words is "two hundred twenty-two million, one hundred seventy thousand, nine hundred forty-four".