422322403220 has 24 divisors (see below), whose sum is σ = 908508196008. Its totient is φ = 164808742400.

The previous prime is 422322403213. The next prime is 422322403231. The reversal of 422322403220 is 22304223224.

It can be written as a sum of positive squares in 4 ways, for example, as 14762736004 + 407559667216 = 121502^2 + 638404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 422322403220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257512841 + ... + 257514480.

It is an arithmetic number, because the mean of its divisors is an integer number (37854508167).

Almost surely, 2^422322403220 is an apocalyptic number.

It is an amenable number.

422322403220 is an abundant number, since it is smaller than the sum of its proper divisors (486185792788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422322403220 is a wasteful number, since it uses less digits than its factorization.

422322403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515027371 (or 515027369 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 422322403220 its reverse (22304223224), we get a palindrome (444626626444).

The spelling of 422322403220 in words is "four hundred twenty-two billion, three hundred twenty-two million, four hundred three thousand, two hundred twenty".