225224212 has 12 divisors (see below), whose sum is σ = 399694176. Its totient is φ = 111025880.

The previous prime is 225224191. The next prime is 225224221. The reversal of 225224212 is 212422522.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 396238 + ... + 396805.

It is an arithmetic number, because the mean of its divisors is an integer number (33307848).

Almost surely, 2^225224212 is an apocalyptic number.

It is an amenable number.

225224212 is a deficient number, since it is larger than the sum of its proper divisors (174469964).

225224212 is a wasteful number, since it uses less digits than its factorization.

225224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793118 (or 793116 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 225224212 is about 15007.4718723708. The cubic root of 225224212 is about 608.4221625127.

Adding to 225224212 its reverse (212422522), we get a palindrome (437646734).

The spelling of 225224212 in words is "two hundred twenty-five million, two hundred twenty-four thousand, two hundred twelve".