12512201 has 4 divisors (see below), whose sum is σ = 13474692. Its totient is φ = 11549712.

The previous prime is 12512191. The next prime is 12512231. The reversal of 12512201 is 10221521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2808976 + 9703225 = 1676^2 + 3115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12512201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12512231) 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, 481226 + ... + 481251.

It is an arithmetic number, because the mean of its divisors is an integer number (3368673).

Almost surely, 2^12512201 is an apocalyptic number.

It is an amenable number.

12512201 is a deficient number, since it is larger than the sum of its proper divisors (962491).

12512201 is an equidigital number, since it uses as much as digits as its factorization.

12512201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962490.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12512201 is about 3537.2589670534. The cubic root of 12512201 is about 232.1549264934.

Adding to 12512201 its reverse (10221521), we get a palindrome (22733722).

The spelling of 12512201 in words is "twelve million, five hundred twelve thousand, two hundred one".