12110120011021 has 2 divisors, whose sum is σ = 12110120011022. Its totient is φ = 12110120011020.

The previous prime is 12110120011001. The next prime is 12110120011097. The reversal of 12110120011021 is 12011002101121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11415546116100 + 694573894921 = 3378690^2 + 833411^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110120011021 - 2⁷ = 12110120010893 is a prime.

It is a super-2 number, since 2×12110120011021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12110120010992 and 12110120011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110120011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055060005510 + 6055060005511.

It is an arithmetic number, because the mean of its divisors is an integer number (6055060005511).

Almost surely, 2^{12110120011021} is an apocalyptic number.

It is an amenable number.

12110120011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110120011021 is an equidigital number, since it uses as much as digits as its factorization.

12110120011021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12110120011021 its reverse (12011002101121), we get a palindrome (24121122112142).

The spelling of 12110120011021 in words is "twelve trillion, one hundred ten billion, one hundred twenty million, eleven thousand, twenty-one".