13213030121220 has 48 divisors (see below), whose sum is σ = 37052624790720. Its totient is φ = 3518127989376.

The previous prime is 13213030121209. The next prime is 13213030121231. The reversal of 13213030121220 is 2212103031231.

13213030121220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13213030121209) and next prime (13213030121231).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167044807 + ... + 167123886.

It is an arithmetic number, because the mean of its divisors is an integer number (771929683140).

Almost surely, 2^{13213030121220} is an apocalyptic number.

13213030121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213030121220 is an abundant number, since it is smaller than the sum of its proper divisors (23839594669500).

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

13213030121220 is a wasteful number, since it uses less digits than its factorization.

13213030121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334169364 (or 334169362 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13213030121220 its reverse (2212103031231), we get a palindrome (15425133152451).

The spelling of 13213030121220 in words is "thirteen trillion, two hundred thirteen billion, thirty million, one hundred twenty-one thousand, two hundred twenty".