120121220012281 has 2 divisors, whose sum is σ = 120121220012282. Its totient is φ = 120121220012280.

The previous prime is 120121220012153. The next prime is 120121220012309. The reversal of 120121220012281 is 182210022121021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102426443154025 + 17694776858256 = 10120595^2 + 4206516^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121220012281 - 2⁷ = 120121220012153 is a prime.

It is a super-2 number, since 2×120121220012281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120121220013281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060610006140 + 60060610006141.

It is an arithmetic number, because the mean of its divisors is an integer number (60060610006141).

Almost surely, 2^{120121220012281} is an apocalyptic number.

It is an amenable number.

120121220012281 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121220012281 is an equidigital number, since it uses as much as digits as its factorization.

120121220012281 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 25.

The spelling of 120121220012281 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred eighty-one".