422422430999981 has 2 divisors, whose sum is σ = 422422430999982. Its totient is φ = 422422430999980.

The previous prime is 422422430999963. The next prime is 422422431000083. The reversal of 422422430999981 is 189999034224224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418785896419081 + 3636534580900 = 20464259^2 + 1906970^2 .

It is a cyclic number.

It is not a de Polignac number, because 422422430999981 - 2¹⁰ = 422422430998957 is a prime.

It is a super-2 number, since 2×422422430999981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422422430999941) 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, 211211215499990 + 211211215499991.

It is an arithmetic number, because the mean of its divisors is an integer number (211211215499991).

Almost surely, 2^{422422430999981} is an apocalyptic number.

It is an amenable number.

422422430999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

422422430999981 is an equidigital number, since it uses as much as digits as its factorization.

422422430999981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161243136, while the sum is 68.

The spelling of 422422430999981 in words is "four hundred twenty-two trillion, four hundred twenty-two billion, four hundred thirty million, nine hundred ninety-nine thousand, nine hundred eighty-one".