1220330220330 has 128 divisors (see below), whose sum is σ = 3168478010880. Its totient is φ = 299020078080.

The previous prime is 1220330220323. The next prime is 1220330220377. The reversal of 1220330220330 is 330220330221.

It is a junction number, because it is equal to n+sod(n) for n = 1220330220297 and 1220330220306.

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, 144876499 + ... + 144884921.

It is an arithmetic number, because the mean of its divisors is an integer number (24753734460).

Almost surely, 2^{1220330220330} is an apocalyptic number.

1220330220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220330220330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584239005440).

1220330220330 is an abundant number, since it is smaller than the sum of its proper divisors (1948147790550).

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

1220330220330 is a wasteful number, since it uses less digits than its factorization.

1220330220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 1220330220330 its reverse (330220330221), we get a palindrome (1550550550551).

The spelling of 1220330220330 in words is "one trillion, two hundred twenty billion, three hundred thirty million, two hundred twenty thousand, three hundred thirty".