12211200112111 has 128 divisors (see below), whose sum is σ = 16806966607872. Its totient is φ = 8637616944000.

The previous prime is 12211200112063. The next prime is 12211200112129. The reversal of 12211200112111 is 11121100211221.

It is not a de Polignac number, because 12211200112111 - 2⁹ = 12211200111599 is a prime.

It is a super-2 number, since 2×12211200112111² (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 (12211200112211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2282038086 + ... + 2282043436.

It is an arithmetic number, because the mean of its divisors is an integer number (131304426624).

Almost surely, 2^{12211200112111} is an apocalyptic number.

12211200112111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12211200112111 is a deficient number, since it is larger than the sum of its proper divisors (4595766495761).

12211200112111 is a wasteful number, since it uses less digits than its factorization.

12211200112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5692 counting only the distinct ones).

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

Adding to 12211200112111 its reverse (11121100211221), we get a palindrome (23332300323332).

The spelling of 12211200112111 in words is "twelve trillion, two hundred eleven billion, two hundred million, one hundred twelve thousand, one hundred eleven".