422143240424197 has 2 divisors, whose sum is σ = 422143240424198. Its totient is φ = 422143240424196.

The previous prime is 422143240424141. The next prime is 422143240424237. The reversal of 422143240424197 is 791424042341224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290088989936001 + 132054250488196 = 17031999^2 + 11491486^2 .

It is a cyclic number.

It is not a de Polignac number, because 422143240424197 - 2¹¹ = 422143240422149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422143240424197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422143240424107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211071620212098 + 211071620212099.

It is an arithmetic number, because the mean of its divisors is an integer number (211071620212099).

Almost surely, 2^{422143240424197} is an apocalyptic number.

It is an amenable number.

422143240424197 is a deficient number, since it is larger than the sum of its proper divisors (1).

422143240424197 is an equidigital number, since it uses as much as digits as its factorization.

422143240424197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 422143240424197 in words is "four hundred twenty-two trillion, one hundred forty-three billion, two hundred forty million, four hundred twenty-four thousand, one hundred ninety-seven".