225112212 has 36 divisors (see below), whose sum is σ = 612806740. Its totient is φ = 69265152.

The previous prime is 225112189. The next prime is 225112219. The reversal of 225112212 is 212211522.

225112212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 81974916 + 143137296 = 9054^2 + 11964^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 240037 + ... + 240972.

Almost surely, 2^225112212 is an apocalyptic number.

It is an amenable number.

225112212 is an abundant number, since it is smaller than the sum of its proper divisors (387694528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225112212 is a wasteful number, since it uses less digits than its factorization.

225112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481032 (or 481027 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 225112212 is about 15003.7399337632. The cubic root of 225112212 is about 608.3212932794.

Adding to 225112212 its reverse (212211522), we get a palindrome (437323734).

The spelling of 225112212 in words is "two hundred twenty-five million, one hundred twelve thousand, two hundred twelve".