422225220 has 48 divisors (see below), whose sum is σ = 1244456640. Its totient is φ = 106667136.

The previous prime is 422225207. The next prime is 422225227. The reversal of 422225220 is 22522224.

It is not an unprimeable number, because it can be changed into a prime (422225227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184047 + ... + 186326.

It is an arithmetic number, because the mean of its divisors is an integer number (25926180).

Almost surely, 2^422225220 is an apocalyptic number.

It is an amenable number.

422225220 is an abundant number, since it is smaller than the sum of its proper divisors (822231420).

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

422225220 is a wasteful number, since it uses less digits than its factorization.

422225220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370404 (or 370402 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 422225220 is about 20548.1196219995. The cubic root of 422225220 is about 750.2074803750.

Adding to 422225220 its reverse (22522224), we get a palindrome (444747444).

The spelling of 422225220 in words is "four hundred twenty-two million, two hundred twenty-five thousand, two hundred twenty".