13221301 has 4 divisors (see below), whose sum is σ = 13228704. Its totient is φ = 13213900.

The previous prime is 13221293. The next prime is 13221317. The reversal of 13221301 is 10312231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13221301 - 2³ = 13221293 is a prime.

It is a super-3 number, since 3×13221301³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (3307176).

Almost surely, 2^13221301 is an apocalyptic number.

It is an amenable number.

13221301 is a deficient number, since it is larger than the sum of its proper divisors (7403).

13221301 is an equidigital number, since it uses as much as digits as its factorization.

13221301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7402.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13221301 is about 3636.1106968848. The cubic root of 13221301 is about 236.4602063302.

Adding to 13221301 its reverse (10312231), we get a palindrome (23533532).

The spelling of 13221301 in words is "thirteen million, two hundred twenty-one thousand, three hundred one".