12110120999 has 2 divisors, whose sum is σ = 12110121000. Its totient is φ = 12110120998.

The previous prime is 12110120989. The next prime is 12110121083. The reversal of 12110120999 is 99902101121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12110120999 - 2²⁴ = 12093343783 is a prime.

It is a super-2 number, since 2×12110120999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110120959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055060499 + 6055060500.

It is an arithmetic number, because the mean of its divisors is an integer number (6055060500).

Almost surely, 2^12110120999 is an apocalyptic number.

12110120999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110120999 is an equidigital number, since it uses as much as digits as its factorization.

12110120999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

It can be divided in two parts, 12 and 110120999, that added together give a palindrome (110121011).

The spelling of 12110120999 in words is "twelve billion, one hundred ten million, one hundred twenty thousand, nine hundred ninety-nine".