220030022320 has 80 divisors (see below), whose sum is σ = 528434213760. Its totient is φ = 85138117632.

The previous prime is 220030022299. The next prime is 220030022363. The reversal of 220030022320 is 23220030022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 220030022294 and 220030022303.

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, 297241 + ... + 726919.

It is an arithmetic number, because the mean of its divisors is an integer number (6605427672).

Almost surely, 2^220030022320 is an apocalyptic number.

220030022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220030022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264217106880).

220030022320 is an abundant number, since it is smaller than the sum of its proper divisors (308404191440).

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

220030022320 is a wasteful number, since it uses less digits than its factorization.

220030022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429902 (or 429896 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 220030022320 its reverse (23220030022), we get a palindrome (243250052342).

The spelling of 220030022320 in words is "two hundred twenty billion, thirty million, twenty-two thousand, three hundred twenty".