13330331220 has 96 divisors (see below), whose sum is σ = 39933694080. Its totient is φ = 3312437760.

The previous prime is 13330331219. The next prime is 13330331233. The reversal of 13330331220 is 2213303331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26307 + ... + 165386.

It is an arithmetic number, because the mean of its divisors is an integer number (415975980).

Almost surely, 2^13330331220 is an apocalyptic number.

13330331220 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 13330331220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19966847040).

13330331220 is an abundant number, since it is smaller than the sum of its proper divisors (26603362860).

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

13330331220 is a wasteful number, since it uses less digits than its factorization.

13330331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191785 (or 191783 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13330331220 its reverse (2213303331), we get a palindrome (15543634551).

The spelling of 13330331220 in words is "thirteen billion, three hundred thirty million, three hundred thirty-one thousand, two hundred twenty".