13212320033220 has 96 divisors (see below), whose sum is σ = 46123008132096. Its totient is φ = 2745417148800.

The previous prime is 13212320033177. The next prime is 13212320033267. The reversal of 13212320033220 is 2233002321231.

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, 1429900146 + ... + 1429909385.

It is an arithmetic number, because the mean of its divisors is an integer number (480448001376).

Almost surely, 2^{13212320033220} is an apocalyptic number.

13212320033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212320033220 is an abundant number, since it is smaller than the sum of its proper divisors (32910688098876).

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

13212320033220 is a wasteful number, since it uses less digits than its factorization.

13212320033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859809561 (or 2859809559 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13212320033220 its reverse (2233002321231), we get a palindrome (15445322354451).

The spelling of 13212320033220 in words is "thirteen trillion, two hundred twelve billion, three hundred twenty million, thirty-three thousand, two hundred twenty".