1222643060791 has 2 divisors, whose sum is σ = 1222643060792. Its totient is φ = 1222643060790.

The previous prime is 1222643060701. The next prime is 1222643060797. The reversal of 1222643060791 is 1970603462221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222643060791 - 2¹⁹ = 1222642536503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222643060797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611321530395 + 611321530396.

It is an arithmetic number, because the mean of its divisors is an integer number (611321530396).

Almost surely, 2^{1222643060791} is an apocalyptic number.

1222643060791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222643060791 is an equidigital number, since it uses as much as digits as its factorization.

1222643060791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 1222643060791 in words is "one trillion, two hundred twenty-two billion, six hundred forty-three million, sixty thousand, seven hundred ninety-one".