122685780071 has 2 divisors, whose sum is σ = 122685780072. Its totient is φ = 122685780070.

The previous prime is 122685779969. The next prime is 122685780083. The reversal of 122685780071 is 170087586221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122685780071 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 122685779998 and 122685780025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122685782071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61342890035 + 61342890036.

It is an arithmetic number, because the mean of its divisors is an integer number (61342890036).

Almost surely, 2^122685780071 is an apocalyptic number.

122685780071 is a deficient number, since it is larger than the sum of its proper divisors (1).

122685780071 is an equidigital number, since it uses as much as digits as its factorization.

122685780071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 122685780071 in words is "one hundred twenty-two billion, six hundred eighty-five million, seven hundred eighty thousand, seventy-one".