13220310220 has 96 divisors (see below), whose sum is σ = 31286868480. Its totient is φ = 4658964480.

The previous prime is 13220310203. The next prime is 13220310223. The reversal of 13220310220 is 2201302231.

It is a junction number, because it is equal to n+sod(n) for n = 13220310194 and 13220310203.

It is not an unprimeable number, because it can be changed into a prime (13220310223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577146 + ... + 599614.

It is an arithmetic number, because the mean of its divisors is an integer number (325904880).

Almost surely, 2^13220310220 is an apocalyptic number.

13220310220 is a gapful number since it is divisible by the number (10) 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 13220310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15643434240).

13220310220 is an abundant number, since it is smaller than the sum of its proper divisors (18066558260).

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

13220310220 is a wasteful number, since it uses less digits than its factorization.

13220310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595 (or 22593 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13220310220 its reverse (2201302231), we get a palindrome (15421612451).

The spelling of 13220310220 in words is "thirteen billion, two hundred twenty million, three hundred ten thousand, two hundred twenty".