13221022303220 has 48 divisors (see below), whose sum is σ = 28110259820160. Its totient is φ = 5222535271296.

The previous prime is 13221022303201. The next prime is 13221022303301. The reversal of 13221022303220 is 2230322012231.

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, 2378666 + ... + 5665694.

It is an arithmetic number, because the mean of its divisors is an integer number (585630412920).

Almost surely, 2^{13221022303220} is an apocalyptic number.

13221022303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221022303220 is an abundant number, since it is smaller than the sum of its proper divisors (14889237516940).

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

13221022303220 is a wasteful number, since it uses less digits than its factorization.

13221022303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289544 (or 3289542 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13221022303220 its reverse (2230322012231), we get a palindrome (15451344315451).

The spelling of 13221022303220 in words is "thirteen trillion, two hundred twenty-one billion, twenty-two million, three hundred three thousand, two hundred twenty".