122555321123377 has 2 divisors, whose sum is σ = 122555321123378. Its totient is φ = 122555321123376.

The previous prime is 122555321123357. The next prime is 122555321123423. The reversal of 122555321123377 is 773321123555221.

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., 121841770934416 + 713550188961 = 11038196^2 + 844719^2 .

It is a cyclic number.

It is not a de Polignac number, because 122555321123377 - 2³⁹ = 122005565309489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122555321123377.

It is not a weakly prime, because it can be changed into another prime (122555321123327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61277660561688 + 61277660561689.

It is an arithmetic number, because the mean of its divisors is an integer number (61277660561689).

Almost surely, 2^{122555321123377} is an apocalyptic number.

It is an amenable number.

122555321123377 is a deficient number, since it is larger than the sum of its proper divisors (1).

122555321123377 is an equidigital number, since it uses as much as digits as its factorization.

122555321123377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646000, while the sum is 49.

Adding to 122555321123377 its reverse (773321123555221), we get a palindrome (895876444678598).

The spelling of 122555321123377 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred twenty-one million, one hundred twenty-three thousand, three hundred seventy-seven".