12012001220281 has 2 divisors, whose sum is σ = 12012001220282. Its totient is φ = 12012001220280.

The previous prime is 12012001220257. The next prime is 12012001220321. The reversal of 12012001220281 is 18202210021021.

12012001220281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9041838511225 + 2970162709056 = 3006965^2 + 1723416^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012001220281 - 2³¹ = 12009853736633 is a prime.

It is a super-2 number, since 2×12012001220281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12012001220081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006000610140 + 6006000610141.

It is an arithmetic number, because the mean of its divisors is an integer number (6006000610141).

Almost surely, 2^{12012001220281} is an apocalyptic number.

It is an amenable number.

12012001220281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012001220281 is an equidigital number, since it uses as much as digits as its factorization.

12012001220281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 12012001220281 in words is "twelve trillion, twelve billion, one million, two hundred twenty thousand, two hundred eighty-one".