422120440043321 has 2 divisors, whose sum is σ = 422120440043322. Its totient is φ = 422120440043320.

The previous prime is 422120440043261. The next prime is 422120440043333. The reversal of 422120440043321 is 123340044021224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284327212620025 + 137793227423296 = 16862005^2 + 11738536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422120440043321 is a prime.

It is not a weakly prime, because it can be changed into another prime (422120440043371) 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, 211060220021660 + 211060220021661.

It is an arithmetic number, because the mean of its divisors is an integer number (211060220021661).

Almost surely, 2^{422120440043321} is an apocalyptic number.

It is an amenable number.

422120440043321 is a deficient number, since it is larger than the sum of its proper divisors (1).

422120440043321 is an equidigital number, since it uses as much as digits as its factorization.

422120440043321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 422120440043321 its reverse (123340044021224), we get a palindrome (545460484064545).

The spelling of 422120440043321 in words is "four hundred twenty-two trillion, one hundred twenty billion, four hundred forty million, forty-three thousand, three hundred twenty-one".