122109838057 has 2 divisors, whose sum is σ = 122109838058. Its totient is φ = 122109838056.

The previous prime is 122109838051. The next prime is 122109838079. The reversal of 122109838057 is 750838901221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114937272576 + 7172565481 = 339024^2 + 84691^2 .

It is a cyclic number.

It is not a de Polignac number, because 122109838057 - 2³¹ = 119962354409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122109837998 and 122109838016.

It is not a weakly prime, because it can be changed into another prime (122109838051) 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, 61054919028 + 61054919029.

It is an arithmetic number, because the mean of its divisors is an integer number (61054919029).

Almost surely, 2^122109838057 is an apocalyptic number.

It is an amenable number.

122109838057 is a deficient number, since it is larger than the sum of its proper divisors (1).

122109838057 is an equidigital number, since it uses as much as digits as its factorization.

122109838057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 122109838057 in words is "one hundred twenty-two billion, one hundred nine million, eight hundred thirty-eight thousand, fifty-seven".