122705955677 has 2 divisors, whose sum is σ = 122705955678. Its totient is φ = 122705955676.

The previous prime is 122705955637. The next prime is 122705955689. The reversal of 122705955677 is 776559507221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110390727001 + 12315228676 = 332251^2 + 110974^2 .

It is a cyclic number.

It is not a de Polignac number, because 122705955677 - 2¹² = 122705951581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122705955637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61352977838 + 61352977839.

It is an arithmetic number, because the mean of its divisors is an integer number (61352977839).

Almost surely, 2^122705955677 is an apocalyptic number.

It is an amenable number.

122705955677 is a deficient number, since it is larger than the sum of its proper divisors (1).

122705955677 is an equidigital number, since it uses as much as digits as its factorization.

122705955677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9261000, while the sum is 56.

The spelling of 122705955677 in words is "one hundred twenty-two billion, seven hundred five million, nine hundred fifty-five thousand, six hundred seventy-seven".