122110139 has 2 divisors, whose sum is σ = 122110140. Its totient is φ = 122110138.

The previous prime is 122110123. The next prime is 122110159. The reversal of 122110139 is 931011221.

It is an a-pointer prime, because the next prime (122110159) can be obtained adding 122110139 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122110139 - 2⁴ = 122110123 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122110139.

It is not a weakly prime, because it can be changed into another prime (122110159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055069 + 61055070.

It is an arithmetic number, because the mean of its divisors is an integer number (61055070).

Almost surely, 2^122110139 is an apocalyptic number.

122110139 is a deficient number, since it is larger than the sum of its proper divisors (1).

122110139 is an equidigital number, since it uses as much as digits as its factorization.

122110139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 122110139 is about 11050.3456507025. The cubic root of 122110139 is about 496.1167711433.

The spelling of 122110139 in words is "one hundred twenty-two million, one hundred ten thousand, one hundred thirty-nine".