13221200333333 has 4 divisors (see below), whose sum is σ = 13543668634188. Its totient is φ = 12898732032480.

The previous prime is 13221200333321. The next prime is 13221200333357. The reversal of 13221200333333 is 33333300212231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6381474240964 + 6839726092369 = 2526158^2 + 2615287^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221200333333 - 2¹⁰ = 13221200332309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221200333296 and 13221200333305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221200333303) 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, 161234150366 + ... + 161234150447.

It is an arithmetic number, because the mean of its divisors is an integer number (3385917158547).

Almost surely, 2^{13221200333333} is an apocalyptic number.

It is an amenable number.

13221200333333 is a deficient number, since it is larger than the sum of its proper divisors (322468300855).

13221200333333 is an equidigital number, since it uses as much as digits as its factorization.

13221200333333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322468300854.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 13221200333333 its reverse (33333300212231), we get a palindrome (46554500545564).

The spelling of 13221200333333 in words is "thirteen trillion, two hundred twenty-one billion, two hundred million, three hundred thirty-three thousand, three hundred thirty-three".