1122845672891 has 2 divisors, whose sum is σ = 1122845672892. Its totient is φ = 1122845672890.

The previous prime is 1122845672887. The next prime is 1122845672951. The reversal of 1122845672891 is 1982765482211.

It is a weak prime.

It is an emirp because it is prime and its reverse (1982765482211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122845672891 - 2² = 1122845672887 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122845672801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561422836445 + 561422836446.

It is an arithmetic number, because the mean of its divisors is an integer number (561422836446).

Almost surely, 2^{1122845672891} is an apocalyptic number.

1122845672891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122845672891 is an equidigital number, since it uses as much as digits as its factorization.

1122845672891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 56.

The spelling of 1122845672891 in words is "one trillion, one hundred twenty-two billion, eight hundred forty-five million, six hundred seventy-two thousand, eight hundred ninety-one".