225112213 has 4 divisors (see below), whose sum is σ = 225594720. Its totient is φ = 224629708.

The previous prime is 225112189. The next prime is 225112219. The reversal of 225112213 is 312211522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225112213 - 2⁹ = 225111701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225112219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240553 + ... + 241486.

It is an arithmetic number, because the mean of its divisors is an integer number (56398680).

Almost surely, 2^225112213 is an apocalyptic number.

It is an amenable number.

225112213 is a deficient number, since it is larger than the sum of its proper divisors (482507).

225112213 is an equidigital number, since it uses as much as digits as its factorization.

225112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482506.

The product of its digits is 240, while the sum is 19.

The square root of 225112213 is about 15003.7399670882. The cubic root of 225112213 is about 608.3212941801.

Adding to 225112213 its reverse (312211522), we get a palindrome (537323735).

The spelling of 225112213 in words is "two hundred twenty-five million, one hundred twelve thousand, two hundred thirteen".