13321030221 has 24 divisors (see below), whose sum is σ = 21259143360. Its totient is φ = 7994887296.

The previous prime is 13321030213. The next prime is 13321030237. The reversal of 13321030221 is 12203012331.

13321030221 is a `hidden beast` number, since 1 + 332 + 10 + 302 + 21 = 666.

It is not a de Polignac number, because 13321030221 - 2³ = 13321030213 is a prime.

It is a super-2 number, since 2×13321030221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13321030194 and 13321030203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321010221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1889211 + ... + 1896248.

It is an arithmetic number, because the mean of its divisors is an integer number (885797640).

Almost surely, 2^13321030221 is an apocalyptic number.

It is an amenable number.

13321030221 is a deficient number, since it is larger than the sum of its proper divisors (7938113139).

13321030221 is a wasteful number, since it uses less digits than its factorization.

13321030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785505 (or 3785502 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13321030221 its reverse (12203012331), we get a palindrome (25524042552).

The spelling of 13321030221 in words is "thirteen billion, three hundred twenty-one million, thirty thousand, two hundred twenty-one".