13221231333 has 8 divisors (see below), whose sum is σ = 17631177888. Its totient is φ = 8812719504.

The previous prime is 13221231299. The next prime is 13221231379. The reversal of 13221231333 is 33313212231.

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

It is not a de Polignac number, because 13221231333 - 2⁹ = 13221230821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221231383) 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, 336991 + ... + 374172.

It is an arithmetic number, because the mean of its divisors is an integer number (2203897236).

Almost surely, 2^13221231333 is an apocalyptic number.

It is an amenable number.

13221231333 is a deficient number, since it is larger than the sum of its proper divisors (4409946555).

13221231333 is an equidigital number, since it uses as much as digits as its factorization.

13221231333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717363.

The product of its digits is 1944, while the sum is 24.

Adding to 13221231333 its reverse (33313212231), we get a palindrome (46534443564).

The spelling of 13221231333 in words is "thirteen billion, two hundred twenty-one million, two hundred thirty-one thousand, three hundred thirty-three".