122120102020139 has 2 divisors, whose sum is σ = 122120102020140. Its totient is φ = 122120102020138.

The previous prime is 122120102020003. The next prime is 122120102020199. The reversal of 122120102020139 is 931020201021221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122120102020139 - 2²⁴ = 122120085242923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (122120102020199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060051010069 + 61060051010070.

It is an arithmetic number, because the mean of its divisors is an integer number (61060051010070).

Almost surely, 2^{122120102020139} is an apocalyptic number.

122120102020139 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120102020139 is an equidigital number, since it uses as much as digits as its factorization.

122120102020139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 122120102020139 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred two million, twenty thousand, one hundred thirty-nine".