12516201 has 32 divisors (see below), whose sum is σ = 19286400. Its totient is φ = 8118144.

The previous prime is 12516169. The next prime is 12516211. The reversal of 12516201 is 10261521.

It is not a de Polignac number, because 12516201 - 2⁵ = 12516169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12516211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128985 + ... + 129081.

It is an arithmetic number, because the mean of its divisors is an integer number (602700).

Almost surely, 2^12516201 is an apocalyptic number.

It is an amenable number.

12516201 is a deficient number, since it is larger than the sum of its proper divisors (6770199).

12516201 is an frugal number, since it uses more digits than its factorization.

12516201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 12516201 is about 3537.8243314218. The cubic root of 12516201 is about 232.1796629025.

Adding to 12516201 its reverse (10261521), we get a palindrome (22777722).

The spelling of 12516201 in words is "twelve million, five hundred sixteen thousand, two hundred one".