422521312322 has 6 divisors (see below), whose sum is σ = 633783347379. Its totient is φ = 211260196530.

The previous prime is 422521312321. The next prime is 422521312387. The reversal of 422521312322 is 223213125224.

It can be written as a sum of positive squares in only one way, i.e., 211260656161 + 211260656161 = 459631^2 + 459631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=459631.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422521312321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 689447 + ... + 1149077.

Almost surely, 2^422521312322 is an apocalyptic number.

422521312322 is a deficient number, since it is larger than the sum of its proper divisors (211262035057).

422521312322 is an frugal number, since it uses more digits than its factorization.

422521312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919264 (or 459633 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 422521312322 its reverse (223213125224), we get a palindrome (645734437546).

The spelling of 422521312322 in words is "four hundred twenty-two billion, five hundred twenty-one million, three hundred twelve thousand, three hundred twenty-two".