12202380766781 has 2 divisors, whose sum is σ = 12202380766782. Its totient is φ = 12202380766780.

The previous prime is 12202380766747. The next prime is 12202380766799. The reversal of 12202380766781 is 18766708320221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10839403905625 + 1362976861156 = 3292325^2 + 1167466^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202380766781 - 2⁶ = 12202380766717 is a prime.

It is a super-2 number, since 2×12202380766781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202380766481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101190383390 + 6101190383391.

It is an arithmetic number, because the mean of its divisors is an integer number (6101190383391).

Almost surely, 2^{12202380766781} is an apocalyptic number.

It is an amenable number.

12202380766781 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202380766781 is an equidigital number, since it uses as much as digits as its factorization.

12202380766781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 12202380766781 in words is "twelve trillion, two hundred two billion, three hundred eighty million, seven hundred sixty-six thousand, seven hundred eighty-one".