422221332 has 48 divisors (see below), whose sum is σ = 1073782080. Its totient is φ = 128345088.

The previous prime is 422221301. The next prime is 422221381. The reversal of 422221332 is 233122224.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 422221299 and 422221308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3357 + ... + 29252.

It is an arithmetic number, because the mean of its divisors is an integer number (22370460).

Almost surely, 2^422221332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422221332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536891040).

422221332 is an abundant number, since it is smaller than the sum of its proper divisors (651560748).

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

422221332 is a wasteful number, since it uses less digits than its factorization.

422221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32712 (or 32710 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 422221332 is about 20548.0250145847. The cubic root of 422221332 is about 750.2051776422.

Adding to 422221332 its reverse (233122224), we get a palindrome (655343556).

The spelling of 422221332 in words is "four hundred twenty-two million, two hundred twenty-one thousand, three hundred thirty-two".