12211221113111 has 8 divisors (see below), whose sum is σ = 12241619712000. Its totient is φ = 12180846808152.

The previous prime is 12211221113107. The next prime is 12211221113129. The reversal of 12211221113111 is 11131112211221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12211221113111 - 2² = 12211221113107 is a prime.

It is a super-2 number, since 2×12211221113111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211221113101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5066735 + ... + 7077728.

It is an arithmetic number, because the mean of its divisors is an integer number (1530202464000).

Almost surely, 2^{12211221113111} is an apocalyptic number.

12211221113111 is a deficient number, since it is larger than the sum of its proper divisors (30398598889).

12211221113111 is a wasteful number, since it uses less digits than its factorization.

12211221113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146965.

The product of its digits is 48, while the sum is 20.

Adding to 12211221113111 its reverse (11131112211221), we get a palindrome (23342333324332).

The spelling of 12211221113111 in words is "twelve trillion, two hundred eleven billion, two hundred twenty-one million, one hundred thirteen thousand, one hundred eleven".