222332225 has 6 divisors (see below), whose sum is σ = 275691990. Its totient is φ = 177865760.

The previous prime is 222332221. The next prime is 222332261. The reversal of 222332225 is 522233222.

It can be written as a sum of positive squares in 3 ways, for example, as 39325441 + 183006784 = 6271^2 + 13528^2 .

It is not a de Polignac number, because 222332225 - 2² = 222332221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222332225.

It is not an unprimeable number, because it can be changed into a prime (222332221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4446620 + ... + 4446669.

It is an arithmetic number, because the mean of its divisors is an integer number (45948665).

Almost surely, 2^222332225 is an apocalyptic number.

222332225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222332225 is a deficient number, since it is larger than the sum of its proper divisors (53359765).

222332225 is an equidigital number, since it uses as much as digits as its factorization.

222332225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893299 (or 8893294 counting only the distinct ones).

The product of its digits is 2880, while the sum is 23.

The square root of 222332225 is about 14910.8089988438. The cubic root of 222332225 is about 605.8067919471.

Adding to 222332225 its reverse (522233222), we get a palindrome (744565447).

The spelling of 222332225 in words is "two hundred twenty-two million, three hundred thirty-two thousand, two hundred twenty-five".