12121320201 has 16 divisors (see below), whose sum is σ = 16387303680. Its totient is φ = 7968597120.

The previous prime is 12121320193. The next prime is 12121320223. The reversal of 12121320201 is 10202312121.

12121320201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12121320201 - 2³ = 12121320193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12121320241) 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 15 ways as a sum of consecutive naturals, for example, 38736 + ... + 160446.

It is an arithmetic number, because the mean of its divisors is an integer number (1024206480).

Almost surely, 2^12121320201 is an apocalyptic number.

It is an amenable number.

12121320201 is a deficient number, since it is larger than the sum of its proper divisors (4265983479).

12121320201 is a wasteful number, since it uses less digits than its factorization.

12121320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122176.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12121320201 its reverse (10202312121), we get a palindrome (22323632322).

The spelling of 12121320201 in words is "twelve billion, one hundred twenty-one million, three hundred twenty thousand, two hundred one".