12521200 has 60 divisors (see below), whose sum is σ = 31413168. Its totient is φ = 4787200.

The previous prime is 12521189. The next prime is 12521203. The reversal of 12521200 is 212521.

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 11 ways as a sum of consecutive naturals, for example, 8520 + ... + 9880.

Almost surely, 2^12521200 is an apocalyptic number.

12521200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12521200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15706584).

12521200 is an abundant number, since it is smaller than the sum of its proper divisors (18891968).

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

12521200 is a wasteful number, since it uses less digits than its factorization.

12521200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12521200 is about 3538.5307685535. The cubic root of 12521200 is about 232.2105698218.

Adding to 12521200 its reverse (212521), we get a palindrome (12733721).

It can be divided in two parts, 12521 and 200, that added together give a palindrome (12721).

The spelling of 12521200 in words is "twelve million, five hundred twenty-one thousand, two hundred".