422104345424221 has 2 divisors, whose sum is σ = 422104345424222. Its totient is φ = 422104345424220.

The previous prime is 422104345424131. The next prime is 422104345424231. The reversal of 422104345424221 is 122424543401224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261250650562500 + 160853694861721 = 16163250^2 + 12682811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422104345424221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422104345424231) 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, 211052172712110 + 211052172712111.

It is an arithmetic number, because the mean of its divisors is an integer number (211052172712111).

Almost surely, 2^{422104345424221} is an apocalyptic number.

It is an amenable number.

422104345424221 is a deficient number, since it is larger than the sum of its proper divisors (1).

422104345424221 is an equidigital number, since it uses as much as digits as its factorization.

422104345424221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 422104345424221 its reverse (122424543401224), we get a palindrome (544528888825445).

The spelling of 422104345424221 in words is "four hundred twenty-two trillion, one hundred four billion, three hundred forty-five million, four hundred twenty-four thousand, two hundred twenty-one".