12822052861 has 2 divisors, whose sum is σ = 12822052862. Its totient is φ = 12822052860.

The previous prime is 12822052849. The next prime is 12822052871. The reversal of 12822052861 is 16825022821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12453220836 + 368832025 = 111594^2 + 19205^2 .

It is an emirp because it is prime and its reverse (16825022821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12822052861 - 2⁵ = 12822052829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12822052861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12822052871) 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, 6411026430 + 6411026431.

It is an arithmetic number, because the mean of its divisors is an integer number (6411026431).

Almost surely, 2^12822052861 is an apocalyptic number.

It is an amenable number.

12822052861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12822052861 is an equidigital number, since it uses as much as digits as its factorization.

12822052861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 12822052861 in words is "twelve billion, eight hundred twenty-two million, fifty-two thousand, eight hundred sixty-one".