12002111202121 has 4 divisors (see below), whose sum is σ = 12003185419972. Its totient is φ = 12001036984272.

The previous prime is 12002111202101. The next prime is 12002111202139. The reversal of 12002111202121 is 12120211120021.

12002111202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8379982832400 + 3622128369721 = 2894820^2 + 1903189^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002111202121 - 2⁵ = 12002111202089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002111202095 and 12002111202104.

It is not an unprimeable number, because it can be changed into a prime (12002111202101) 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, 537092166 + ... + 537114511.

It is an arithmetic number, because the mean of its divisors is an integer number (3000796354993).

Almost surely, 2^{12002111202121} is an apocalyptic number.

It is an amenable number.

12002111202121 is a deficient number, since it is larger than the sum of its proper divisors (1074217851).

12002111202121 is a wasteful number, since it uses less digits than its factorization.

12002111202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074217850.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12002111202121 its reverse (12120211120021), we get a palindrome (24122322322142).

The spelling of 12002111202121 in words is "twelve trillion, two billion, one hundred eleven million, two hundred two thousand, one hundred twenty-one".