1122129478277 has 2 divisors, whose sum is σ = 1122129478278. Its totient is φ = 1122129478276.

The previous prime is 1122129478219. The next prime is 1122129478291. The reversal of 1122129478277 is 7728749212211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107575227396 + 14554250881 = 1052414^2 + 120641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122129478277 - 2⁸ = 1122129478021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122129408277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561064739138 + 561064739139.

It is an arithmetic number, because the mean of its divisors is an integer number (561064739139).

Almost surely, 2^{1122129478277} is an apocalyptic number.

It is an amenable number.

1122129478277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122129478277 is an equidigital number, since it uses as much as digits as its factorization.

1122129478277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 53.

The spelling of 1122129478277 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-nine million, four hundred seventy-eight thousand, two hundred seventy-seven".