1122888956789 has 2 divisors, whose sum is σ = 1122888956790. Its totient is φ = 1122888956788.

The previous prime is 1122888956773. The next prime is 1122888956807. The reversal of 1122888956789 is 9876598882211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006727276164 + 116161680625 = 1003358^2 + 340825^2 .

It is an emirp because it is prime and its reverse (9876598882211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122888956789 - 2⁴ = 1122888956773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122888916789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561444478394 + 561444478395.

It is an arithmetic number, because the mean of its divisors is an integer number (561444478395).

Almost surely, 2^{1122888956789} is an apocalyptic number.

It is an amenable number.

1122888956789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122888956789 is an equidigital number, since it uses as much as digits as its factorization.

1122888956789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 278691840, while the sum is 74.

The spelling of 1122888956789 in words is "one trillion, one hundred twenty-two billion, eight hundred eighty-eight million, nine hundred fifty-six thousand, seven hundred eighty-nine".