122244142057 has 2 divisors, whose sum is σ = 122244142058. Its totient is φ = 122244142056.

The previous prime is 122244141997. The next prime is 122244142061. The reversal of 122244142057 is 750241442221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93878508816 + 28365633241 = 306396^2 + 168421^2 .

It is an emirp because it is prime and its reverse (750241442221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122244142057 - 2²⁷ = 122109924329 is a prime.

It is not a weakly prime, because it can be changed into another prime (122244142357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61122071028 + 61122071029.

It is an arithmetic number, because the mean of its divisors is an integer number (61122071029).

Almost surely, 2^122244142057 is an apocalyptic number.

It is an amenable number.

122244142057 is a deficient number, since it is larger than the sum of its proper divisors (1).

122244142057 is an equidigital number, since it uses as much as digits as its factorization.

122244142057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 34.

Adding to 122244142057 its reverse (750241442221), we get a palindrome (872485584278).

The spelling of 122244142057 in words is "one hundred twenty-two billion, two hundred forty-four million, one hundred forty-two thousand, fifty-seven".