12111202212201 has 24 divisors (see below), whose sum is σ = 18421624746720. Its totient is φ = 7646301179136.

The previous prime is 12111202212167. The next prime is 12111202212223. The reversal of 12111202212201 is 10221220211121.

12111202212201 is a `hidden beast` number, since 1 + 211 + 12 + 0 + 221 + 220 + 1 = 666.

It is not a de Polignac number, because 12111202212201 - 2³⁸ = 11836324305257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111202212251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12873795 + ... + 13782488.

It is an arithmetic number, because the mean of its divisors is an integer number (767567697780).

Almost surely, 2^{12111202212201} is an apocalyptic number.

It is an amenable number.

12111202212201 is a deficient number, since it is larger than the sum of its proper divisors (6310422534519).

12111202212201 is a wasteful number, since it uses less digits than its factorization.

12111202212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26658965 (or 26658962 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12111202212201 its reverse (10221220211121), we get a palindrome (22332422423322).

The spelling of 12111202212201 in words is "twelve trillion, one hundred eleven billion, two hundred two million, two hundred twelve thousand, two hundred one".