12001244081 has 2 divisors, whose sum is σ = 12001244082. Its totient is φ = 12001244080.

The previous prime is 12001244063. The next prime is 12001244089. The reversal of 12001244081 is 18044210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7460640625 + 4540603456 = 86375^2 + 67384^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001244081 - 2¹⁰ = 12001243057 is a prime.

It is a super-2 number, since 2×12001244081² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12001244089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000622040 + 6000622041.

It is an arithmetic number, because the mean of its divisors is an integer number (6000622041).

Almost surely, 2^12001244081 is an apocalyptic number.

It is an amenable number.

12001244081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001244081 is an equidigital number, since it uses as much as digits as its factorization.

12001244081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 12001244081 in words is "twelve billion, one million, two hundred forty-four thousand, eighty-one".