12521204 has 12 divisors (see below), whose sum is σ = 21962304. Its totient is φ = 6246264.

The previous prime is 12521203. The next prime is 12521219. The reversal of 12521204 is 40212521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521203) 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, 1484 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (1830192).

Almost surely, 2^12521204 is an apocalyptic number.

It is an amenable number.

12521204 is a deficient number, since it is larger than the sum of its proper divisors (9441100).

12521204 is a wasteful number, since it uses less digits than its factorization.

12521204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174 (or 7172 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12521204 is about 3538.5313337598. The cubic root of 12521204 is about 232.2105945490.

Adding to 12521204 its reverse (40212521), we get a palindrome (52733725).

The spelling of 12521204 in words is "twelve million, five hundred twenty-one thousand, two hundred four".