13220111111320 has 64 divisors (see below), whose sum is σ = 29799691372800. Its totient is φ = 5278370106240.

The previous prime is 13220111111297. The next prime is 13220111111341. The reversal of 13220111111320 is 2311111102231.

It is a congruent number.

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, 106425487 + ... + 106549633.

It is an arithmetic number, because the mean of its divisors is an integer number (465620177700).

Almost surely, 2^{13220111111320} is an apocalyptic number.

13220111111320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220111111320 is an abundant number, since it is smaller than the sum of its proper divisors (16579580261480).

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

13220111111320 is a wasteful number, since it uses less digits than its factorization.

13220111111320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129008 (or 129004 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 13220111111320 its reverse (2311111102231), we get a palindrome (15531222213551).

The spelling of 13220111111320 in words is "thirteen trillion, two hundred twenty billion, one hundred eleven million, one hundred eleven thousand, three hundred twenty".