121012021132139 has 2 divisors, whose sum is σ = 121012021132140. Its totient is φ = 121012021132138.

The previous prime is 121012021132003. The next prime is 121012021132153. The reversal of 121012021132139 is 931231120210121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121012021132139 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012021132169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506010566069 + 60506010566070.

It is an arithmetic number, because the mean of its divisors is an integer number (60506010566070).

Almost surely, 2^{121012021132139} is an apocalyptic number.

121012021132139 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012021132139 is an equidigital number, since it uses as much as digits as its factorization.

121012021132139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 121012021132139 in words is "one hundred twenty-one trillion, twelve billion, twenty-one million, one hundred thirty-two thousand, one hundred thirty-nine".