13021230221 has 8 divisors (see below), whose sum is σ = 13507670400. Its totient is φ = 12542830560.

The previous prime is 13021230199. The next prime is 13021230253. The reversal of 13021230221 is 12203212031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13021230221 - 2¹⁰ = 13021229197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13021230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021230721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2006831 + ... + 2013308.

It is an arithmetic number, because the mean of its divisors is an integer number (1688458800).

Almost surely, 2^13021230221 is an apocalyptic number.

It is an amenable number.

13021230221 is a deficient number, since it is larger than the sum of its proper divisors (486440179).

13021230221 is an equidigital number, since it uses as much as digits as its factorization.

13021230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020259.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13021230221 its reverse (12203212031), we get a palindrome (25224442252).

The spelling of 13021230221 in words is "thirteen billion, twenty-one million, two hundred thirty thousand, two hundred twenty-one".