13221232301 has 4 divisors (see below), whose sum is σ = 13796068512. Its totient is φ = 12646396092.

The previous prime is 13221232291. The next prime is 13221232313. The reversal of 13221232301 is 10323212231.

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 an emirpimes, since its reverse is a distinct semiprime: 10323212231 = 173 ⋅59671747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221232301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221232351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287418071 + ... + 287418116.

It is an arithmetic number, because the mean of its divisors is an integer number (3449017128).

Almost surely, 2^13221232301 is an apocalyptic number.

It is an amenable number.

13221232301 is a deficient number, since it is larger than the sum of its proper divisors (574836211).

13221232301 is an equidigital number, since it uses as much as digits as its factorization.

13221232301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574836210.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13221232301 its reverse (10323212231), we get a palindrome (23544444532).

The spelling of 13221232301 in words is "thirteen billion, two hundred twenty-one million, two hundred thirty-two thousand, three hundred one".