12012120200121 has 64 divisors (see below), whose sum is σ = 16906752884736. Its totient is φ = 7576372238400.

The previous prime is 12012120200089. The next prime is 12012120200161. The reversal of 12012120200121 is 12100202121021.

12012120200121 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 12012120200121 - 2⁵ = 12012120200089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12012120200121.

It is not an unprimeable number, because it can be changed into a prime (12012120200161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2655783766 + ... + 2655788288.

It is an arithmetic number, because the mean of its divisors is an integer number (264168013824).

Almost surely, 2^{12012120200121} is an apocalyptic number.

It is an amenable number.

12012120200121 is a deficient number, since it is larger than the sum of its proper divisors (4894632684615).

12012120200121 is a wasteful number, since it uses less digits than its factorization.

12012120200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012120200121 its reverse (12100202121021), we get a palindrome (24112322321142).

The spelling of 12012120200121 in words is "twelve trillion, twelve billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".