13221203222 has 16 divisors (see below), whose sum is σ = 19936370160. Its totient is φ = 6575797248.

The previous prime is 13221203213. The next prime is 13221203227. The reversal of 13221203222 is 22230212231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13221203194 and 13221203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221203227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540554 + ... + 564482.

It is an arithmetic number, because the mean of its divisors is an integer number (1246023135).

Almost surely, 2^13221203222 is an apocalyptic number.

13221203222 is a deficient number, since it is larger than the sum of its proper divisors (6715166938).

13221203222 is a wasteful number, since it uses less digits than its factorization.

13221203222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25375.

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

Adding to 13221203222 its reverse (22230212231), we get a palindrome (35451415453).

Subtracting 13221203222 from its reverse (22230212231), we obtain a palindrome (9009009009).

The spelling of 13221203222 in words is "thirteen billion, two hundred twenty-one million, two hundred three thousand, two hundred twenty-two".