222221010330 has 128 divisors (see below), whose sum is σ = 646639718400. Its totient is φ = 53856878400.

The previous prime is 222221010289. The next prime is 222221010391. The reversal of 222221010330 is 33010122222.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13888635 + ... + 13904625.

It is an arithmetic number, because the mean of its divisors is an integer number (5051872800).

Almost surely, 2^222221010330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222221010330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323319859200).

222221010330 is an abundant number, since it is smaller than the sum of its proper divisors (424418708070).

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

222221010330 is a wasteful number, since it uses less digits than its factorization.

222221010330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20697 (or 20691 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 222221010330 its reverse (33010122222), we get a palindrome (255231132552).

The spelling of 222221010330 in words is "two hundred twenty-two billion, two hundred twenty-one million, ten thousand, three hundred thirty".