22220022330 has 128 divisors (see below), whose sum is σ = 64764230400. Its totient is φ = 5376326400.

The previous prime is 22220022323. The next prime is 22220022389. The reversal of 22220022330 is 3322002222.

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

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, 1599856 + ... + 1613684.

It is an arithmetic number, because the mean of its divisors is an integer number (505970550).

Almost surely, 2^22220022330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220022330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32382115200).

22220022330 is an abundant number, since it is smaller than the sum of its proper divisors (42544208070).

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

22220022330 is a wasteful number, since it uses less digits than its factorization.

22220022330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397 (or 14391 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 22220022330 its reverse (3322002222), we get a palindrome (25542024552).

The spelling of 22220022330 in words is "twenty-two billion, two hundred twenty million, twenty-two thousand, three hundred thirty".