13220201220320 has 24 divisors (see below), whose sum is σ = 31232725383384. Its totient is φ = 5288080488064.

The previous prime is 13220201220307. The next prime is 13220201220337. The reversal of 13220201220320 is 2302210202231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13220201220292 and 13220201220301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41313128654 + ... + 41313128973.

It is an arithmetic number, because the mean of its divisors is an integer number (1301363557641).

Almost surely, 2^{13220201220320} is an apocalyptic number.

13220201220320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220201220320 is an abundant number, since it is smaller than the sum of its proper divisors (18012524163064).

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

13220201220320 is an equidigital number, since it uses as much as digits as its factorization.

13220201220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82626257642 (or 82626257634 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13220201220320 its reverse (2302210202231), we get a palindrome (15522411422551).

The spelling of 13220201220320 in words is "thirteen trillion, two hundred twenty billion, two hundred one million, two hundred twenty thousand, three hundred twenty".