1099865782271 has 2 divisors, whose sum is σ = 1099865782272. Its totient is φ = 1099865782270.

The previous prime is 1099865782159. The next prime is 1099865782297. The reversal of 1099865782271 is 1722875689901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099865782271 - 2²² = 1099861587967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1099865782198 and 1099865782207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099865782571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549932891135 + 549932891136.

It is an arithmetic number, because the mean of its divisors is an integer number (549932891136).

Almost surely, 2^{1099865782271} is an apocalyptic number.

1099865782271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099865782271 is an equidigital number, since it uses as much as digits as its factorization.

1099865782271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 65.

The spelling of 1099865782271 in words is "one trillion, ninety-nine billion, eight hundred sixty-five million, seven hundred eighty-two thousand, two hundred seventy-one".