12211200120111 has 32 divisors (see below), whose sum is σ = 17096435306496. Its totient is φ = 7744575456000.

The previous prime is 12211200120043. The next prime is 12211200120127. The reversal of 12211200120111 is 11102100211221.

It is a happy number.

It is not a de Polignac number, because 12211200120111 - 2²² = 12211195925807 is a prime.

It is a super-2 number, since 2×12211200120111² (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 (12211200120181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2330580 + ... + 5463881.

It is an arithmetic number, because the mean of its divisors is an integer number (534263603328).

Almost surely, 2^{12211200120111} is an apocalyptic number.

12211200120111 is a deficient number, since it is larger than the sum of its proper divisors (4885235186385).

12211200120111 is a wasteful number, since it uses less digits than its factorization.

12211200120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794823.

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

Adding to 12211200120111 its reverse (11102100211221), we get a palindrome (23313300331332).

The spelling of 12211200120111 in words is "twelve trillion, two hundred eleven billion, two hundred million, one hundred twenty thousand, one hundred eleven".