422320122 has 96 divisors (see below), whose sum is σ = 1101744000. Its totient is φ = 119863800.

The previous prime is 422320081. The next prime is 422320159. The reversal of 422320122 is 221023224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 422320095 and 422320104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2796747 + ... + 2796897.

It is an arithmetic number, because the mean of its divisors is an integer number (11476500).

Almost surely, 2^422320122 is an apocalyptic number.

422320122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 422320122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550872000).

422320122 is an abundant number, since it is smaller than the sum of its proper divisors (679423878).

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

422320122 is an equidigital number, since it uses as much as digits as its factorization.

422320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 422320122 is about 20550.4287546513. The cubic root of 422320122 is about 750.2636832840.

Adding to 422320122 its reverse (221023224), we get a palindrome (643343346).

The spelling of 422320122 in words is "four hundred twenty-two million, three hundred twenty thousand, one hundred twenty-two".