122651040277 has 2 divisors, whose sum is σ = 122651040278. Its totient is φ = 122651040276.

The previous prime is 122651040203. The next prime is 122651040299. The reversal of 122651040277 is 772040156221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120058092036 + 2592948241 = 346494^2 + 50921^2 .

It is a cyclic number.

It is not a de Polignac number, because 122651040277 - 2¹⁹ = 122650515989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122651040077) 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, 61325520138 + 61325520139.

It is an arithmetic number, because the mean of its divisors is an integer number (61325520139).

Almost surely, 2^122651040277 is an apocalyptic number.

It is an amenable number.

122651040277 is a deficient number, since it is larger than the sum of its proper divisors (1).

122651040277 is an equidigital number, since it uses as much as digits as its factorization.

122651040277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

Adding to 122651040277 its reverse (772040156221), we get a palindrome (894691196498).

The spelling of 122651040277 in words is "one hundred twenty-two billion, six hundred fifty-one million, forty thousand, two hundred seventy-seven".