13320111311220 has 96 divisors (see below), whose sum is σ = 42627372592896. Its totient is φ = 3044381414400.

The previous prime is 13320111311201. The next prime is 13320111311233. The reversal of 13320111311220 is 2211311102331.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 4857760 + ... + 7087880.

It is an arithmetic number, because the mean of its divisors is an integer number (444035131176).

Almost surely, 2^{13320111311220} is an apocalyptic number.

13320111311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320111311220 is an abundant number, since it is smaller than the sum of its proper divisors (29307261281676).

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

13320111311220 is a wasteful number, since it uses less digits than its factorization.

13320111311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244361 (or 2244359 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13320111311220 its reverse (2211311102331), we get a palindrome (15531422413551).

The spelling of 13320111311220 in words is "thirteen trillion, three hundred twenty billion, one hundred eleven million, three hundred eleven thousand, two hundred twenty".