222202225 has 24 divisors (see below), whose sum is σ = 315608768. Its totient is φ = 152020800.

The previous prime is 222202181. The next prime is 222202231. The reversal of 222202225 is 522202222.

It is not a de Polignac number, because 222202225 - 2¹¹ = 222200177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93502 + ... + 95848.

Almost surely, 2^222202225 is an apocalyptic number.

222202225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222202225 is a deficient number, since it is larger than the sum of its proper divisors (93406543).

222202225 is a wasteful number, since it uses less digits than its factorization.

222202225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 222202225 is about 14906.4491076849. The cubic root of 222202225 is about 605.6886950502.

Adding to 222202225 its reverse (522202222), we get a palindrome (744404447).

The spelling of 222202225 in words is "two hundred twenty-two million, two hundred two thousand, two hundred twenty-five".