12017225 has 24 divisors (see below), whose sum is σ = 16472160. Its totient is φ = 8624000.

The previous prime is 12017221. The next prime is 12017227. The reversal of 12017225 is 52271021.

It is not a de Polignac number, because 12017225 - 2² = 12017221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12017197 and 12017206.

It is not an unprimeable number, because it can be changed into a prime (12017221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24230 + ... + 24720.

It is an arithmetic number, because the mean of its divisors is an integer number (686340).

Almost surely, 2^12017225 is an apocalyptic number.

It is an amenable number.

12017225 is a deficient number, since it is larger than the sum of its proper divisors (4454935).

12017225 is a wasteful number, since it uses less digits than its factorization.

12017225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12017225 is about 3466.5869381857. The cubic root of 12017225 is about 229.0523389327.

Adding to 12017225 its reverse (52271021), we get a palindrome (64288246).

The spelling of 12017225 in words is "twelve million, seventeen thousand, two hundred twenty-five".