1121122177289 has 2 divisors, whose sum is σ = 1121122177290. Its totient is φ = 1121122177288.

The previous prime is 1121122177283. The next prime is 1121122177303. The reversal of 1121122177289 is 9827712211211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574121413264 + 547000764025 = 757708^2 + 739595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121122177289 - 2⁸ = 1121122177033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121122177283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561088644 + 560561088645.

It is an arithmetic number, because the mean of its divisors is an integer number (560561088645).

Almost surely, 2^{1121122177289} is an apocalyptic number.

It is an amenable number.

1121122177289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121122177289 is an equidigital number, since it uses as much as digits as its factorization.

1121122177289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 44.

The spelling of 1121122177289 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred seventy-seven thousand, two hundred eighty-nine".