122135255057 has 2 divisors, whose sum is σ = 122135255058. Its totient is φ = 122135255056.

The previous prime is 122135255029. The next prime is 122135255059. The reversal of 122135255057 is 750552531221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112611251776 + 9524003281 = 335576^2 + 97591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122135255057 is a prime.

Together with 122135255059, it forms a pair of twin primes.

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 122135255057.

It is not a weakly prime, because it can be changed into another prime (122135255059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61067627528 + 61067627529.

It is an arithmetic number, because the mean of its divisors is an integer number (61067627529).

Almost surely, 2^122135255057 is an apocalyptic number.

It is an amenable number.

122135255057 is a deficient number, since it is larger than the sum of its proper divisors (1).

122135255057 is an equidigital number, since it uses as much as digits as its factorization.

122135255057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

Adding to 122135255057 its reverse (750552531221), we get a palindrome (872687786278).

The spelling of 122135255057 in words is "one hundred twenty-two billion, one hundred thirty-five million, two hundred fifty-five thousand, fifty-seven".