122101582139 has 2 divisors, whose sum is σ = 122101582140. Its totient is φ = 122101582138.

The previous prime is 122101582123. The next prime is 122101582193. The reversal of 122101582139 is 931285101221.

Together with next prime (122101582193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122101582139 - 2⁴ = 122101582123 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122101582099 and 122101582108.

It is not a weakly prime, because it can be changed into another prime (122101582039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050791069 + 61050791070.

It is an arithmetic number, because the mean of its divisors is an integer number (61050791070).

Almost surely, 2^122101582139 is an apocalyptic number.

122101582139 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101582139 is an equidigital number, since it uses as much as digits as its factorization.

122101582139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 122101582139 in words is "one hundred twenty-two billion, one hundred one million, five hundred eighty-two thousand, one hundred thirty-nine".