422206220 has 48 divisors (see below), whose sum is σ = 988212960. Its totient is φ = 150580224.

The previous prime is 422206199. The next prime is 422206229. The reversal of 422206220 is 22602224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 422206192 and 422206201.

It is not an unprimeable number, because it can be changed into a prime (422206229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26219 + ... + 39138.

It is an arithmetic number, because the mean of its divisors is an integer number (20587770).

Almost surely, 2^422206220 is an apocalyptic number.

It is an amenable number.

422206220 is an abundant number, since it is smaller than the sum of its proper divisors (566006740).

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

422206220 is a wasteful number, since it uses less digits than its factorization.

422206220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65402 (or 65400 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 422206220 is about 20547.6572873892. The cubic root of 422206220 is about 750.1962271739.

Adding to 422206220 its reverse (22602224), we get a palindrome (444808444).

The spelling of 422206220 in words is "four hundred twenty-two million, two hundred six thousand, two hundred twenty".