1361202216571 has 2 divisors, whose sum is σ = 1361202216572. Its totient is φ = 1361202216570.

The previous prime is 1361202216559. The next prime is 1361202216581. The reversal of 1361202216571 is 1756122021631.

It is a strong prime.

It is an emirp because it is prime and its reverse (1756122021631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361202216571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1361202216571.

It is not a weakly prime, because it can be changed into another prime (1361202216581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680601108285 + 680601108286.

It is an arithmetic number, because the mean of its divisors is an integer number (680601108286).

Almost surely, 2^{1361202216571} is an apocalyptic number.

1361202216571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361202216571 is an equidigital number, since it uses as much as digits as its factorization.

1361202216571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 1361202216571 in words is "one trillion, three hundred sixty-one billion, two hundred two million, two hundred sixteen thousand, five hundred seventy-one".