12011201022111 has 16 divisors (see below), whose sum is σ = 16068956247168. Its totient is φ = 7980473556000.

The previous prime is 12011201022103. The next prime is 12011201022173. The reversal of 12011201022111 is 11122010211021.

It is a happy number.

It is not a de Polignac number, because 12011201022111 - 2³ = 12011201022103 is a prime.

It is a super-2 number, since 2×12011201022111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011201022811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709705 + ... + 4952381.

It is an arithmetic number, because the mean of its divisors is an integer number (1004309765448).

Almost surely, 2^{12011201022111} is an apocalyptic number.

12011201022111 is a deficient number, since it is larger than the sum of its proper divisors (4057755225057).

12011201022111 is a wasteful number, since it uses less digits than its factorization.

12011201022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4245862.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12011201022111 its reverse (11122010211021), we get a palindrome (23133211233132).

The spelling of 12011201022111 in words is "twelve trillion, eleven billion, two hundred one million, twenty-two thousand, one hundred eleven".