222938225 has 36 divisors (see below), whose sum is σ = 294815580. Its totient is φ = 166992000.

The previous prime is 222938207. The next prime is 222938227. The reversal of 222938225 is 522839222.

It can be written as a sum of positive squares in 6 ways, for example, as 39037504 + 183900721 = 6248^2 + 13561^2 .

It is not a de Polignac number, because 222938225 - 2¹⁴ = 222921841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222938227) 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 in 35 ways as a sum of consecutive naturals, for example, 3139940 + ... + 3140010.

Almost surely, 2^222938225 is an apocalyptic number.

222938225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222938225 is a deficient number, since it is larger than the sum of its proper divisors (71877355).

222938225 is an equidigital number, since it uses as much as digits as its factorization.

222938225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 166 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 222938225 is about 14931.1159998173. The cubic root of 222938225 is about 606.3566985476.

The spelling of 222938225 in words is "two hundred twenty-two million, nine hundred thirty-eight thousand, two hundred twenty-five".