12133225 has 24 divisors (see below), whose sum is σ = 16656920. Its totient is φ = 8709120.

The previous prime is 12133217. The next prime is 12133241. The reversal of 12133225 is 52233121.

12133225 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 12 ways, for example, as 3884841 + 8248384 = 1971^2 + 2872^2 .

It is not a de Polignac number, because 12133225 - 2³ = 12133217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11521 + ... + 12529.

Almost surely, 2^12133225 is an apocalyptic number.

It is an amenable number.

12133225 is a deficient number, since it is larger than the sum of its proper divisors (4523695).

12133225 is a wasteful number, since it uses less digits than its factorization.

12133225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1064 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 12133225 is about 3483.2779102449. The cubic root of 12133225 is about 229.7869798307.

Adding to 12133225 its reverse (52233121), we get a palindrome (64366346).

The spelling of 12133225 in words is "twelve million, one hundred thirty-three thousand, two hundred twenty-five".