12110121222111 has 96 divisors (see below), whose sum is σ = 20632812355584. Its totient is φ = 6768054216000.

The previous prime is 12110121222007. The next prime is 12110121222131. The reversal of 12110121222111 is 11122212101121.

It is a happy number.

12110121222111 is a `hidden beast` number, since 1 + 211 + 0 + 121 + 222 + 111 = 666.

It is not a de Polignac number, because 12110121222111 - 2¹⁰ = 12110121221087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110121222131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18238216 + ... + 18890546.

It is an arithmetic number, because the mean of its divisors is an integer number (214925128704).

Almost surely, 2^{12110121222111} is an apocalyptic number.

12110121222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12110121222111 is a deficient number, since it is larger than the sum of its proper divisors (8522691133473).

12110121222111 is a wasteful number, since it uses less digits than its factorization.

12110121222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652665 (or 652662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 12110121222111 its reverse (11122212101121), we get a palindrome (23232333323232).

The spelling of 12110121222111 in words is "twelve trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".