12120999760081 has 2 divisors, whose sum is σ = 12120999760082. Its totient is φ = 12120999760080.

The previous prime is 12120999760027. The next prime is 12120999760109. The reversal of 12120999760081 is 18006799902121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6432817690000 + 5688182070081 = 2536300^2 + 2384991^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120999760081 - 2¹⁵ = 12120999727313 is a prime.

It is a super-2 number, since 2×12120999760081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120999760981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060499880040 + 6060499880041.

It is an arithmetic number, because the mean of its divisors is an integer number (6060499880041).

Almost surely, 2^{12120999760081} is an apocalyptic number.

It is an amenable number.

12120999760081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120999760081 is an equidigital number, since it uses as much as digits as its factorization.

12120999760081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 12120999760081 in words is "twelve trillion, one hundred twenty billion, nine hundred ninety-nine million, seven hundred sixty thousand, eighty-one".