12110111210117 has 2 divisors, whose sum is σ = 12110111210118. Its totient is φ = 12110111210116.

The previous prime is 12110111210107. The next prime is 12110111210159. The reversal of 12110111210117 is 71101211101121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7149842818561 + 4960268391556 = 2673919^2 + 2227166^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110111210117 - 2²⁸ = 12109842774661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110111210107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055055605058 + 6055055605059.

It is an arithmetic number, because the mean of its divisors is an integer number (6055055605059).

Almost surely, 2^{12110111210117} is an apocalyptic number.

It is an amenable number.

12110111210117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110111210117 is an equidigital number, since it uses as much as digits as its factorization.

12110111210117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 20.

Adding to 12110111210117 its reverse (71101211101121), we get a palindrome (83211322311238).

The spelling of 12110111210117 in words is "twelve trillion, one hundred ten billion, one hundred eleven million, two hundred ten thousand, one hundred seventeen".