225215112 has 16 divisors (see below), whose sum is σ = 563037840. Its totient is φ = 75071696.

The previous prime is 225215077. The next prime is 225215119. The reversal of 225215112 is 211512522.

It is not an unprimeable number, because it can be changed into a prime (225215119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4691958 + ... + 4692005.

It is an arithmetic number, because the mean of its divisors is an integer number (35189865).

Almost surely, 2^225215112 is an apocalyptic number.

It is an amenable number.

225215112 is an abundant number, since it is smaller than the sum of its proper divisors (337822728).

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

225215112 is a wasteful number, since it uses less digits than its factorization.

225215112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9383972 (or 9383968 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 225215112 is about 15007.1686869976. The cubic root of 225215112 is about 608.4139681358.

Adding to 225215112 its reverse (211512522), we get a palindrome (436727634).

The spelling of 225215112 in words is "two hundred twenty-five million, two hundred fifteen thousand, one hundred twelve".