225243212 has 6 divisors (see below), whose sum is σ = 394175628. Its totient is φ = 112621604.

The previous prime is 225243199. The next prime is 225243229. The reversal of 225243212 is 212342522.

225243212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28155398 + ... + 28155405.

It is an arithmetic number, because the mean of its divisors is an integer number (65695938).

Almost surely, 2^225243212 is an apocalyptic number.

It is an amenable number.

225243212 is a deficient number, since it is larger than the sum of its proper divisors (168932416).

225243212 is a wasteful number, since it uses less digits than its factorization.

225243212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56310807 (or 56310805 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 225243212 is about 15008.1048770323. The cubic root of 225243212 is about 608.4392709398.

Adding to 225243212 its reverse (212342522), we get a palindrome (437585734).

The spelling of 225243212 in words is "two hundred twenty-five million, two hundred forty-three thousand, two hundred twelve".