13221330202120 has 64 divisors (see below), whose sum is σ = 29765011057920. Its totient is φ = 5285507533824.

The previous prime is 13221330202111. The next prime is 13221330202121. The reversal of 13221330202120 is 2120203312231.

It is a junction number, because it is equal to n+sod(n) for n = 13221330202091 and 13221330202100.

It is not an unprimeable number, because it can be changed into a prime (13221330202121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703140639 + ... + 703159441.

It is an arithmetic number, because the mean of its divisors is an integer number (465078297780).

Almost surely, 2^{13221330202120} is an apocalyptic number.

13221330202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221330202120 is an abundant number, since it is smaller than the sum of its proper divisors (16543680855800).

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

13221330202120 is a wasteful number, since it uses less digits than its factorization.

13221330202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27934 (or 27930 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13221330202120 its reverse (2120203312231), we get a palindrome (15341533514351).

The spelling of 13221330202120 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty million, two hundred two thousand, one hundred twenty".