13221320033 has 8 divisors (see below), whose sum is σ = 13257552000. Its totient is φ = 13185121680.

The previous prime is 13221319963. The next prime is 13221320083. The reversal of 13221320033 is 33002312231.

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 13221320033 - 2¹⁰ = 13221319009 is a prime.

It is a super-3 number, since 3×13221320033³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221319987 and 13221320014.

It is not an unprimeable number, because it can be changed into a prime (13221320083) 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, 914366 + ... + 928712.

It is an arithmetic number, because the mean of its divisors is an integer number (1657194000).

Almost surely, 2^13221320033 is an apocalyptic number.

It is an amenable number.

13221320033 is a deficient number, since it is larger than the sum of its proper divisors (36231967).

13221320033 is a wasteful number, since it uses less digits than its factorization.

13221320033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16807.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13221320033 its reverse (33002312231), we get a palindrome (46223632264).

The spelling of 13221320033 in words is "thirteen billion, two hundred twenty-one million, three hundred twenty thousand, thirty-three".