13221200333201 has 4 divisors (see below), whose sum is σ = 15109943237952. Its totient is φ = 11332457428452.

The previous prime is 13221200333191. The next prime is 13221200333221. The reversal of 13221200333201 is 10233300212231.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221200333201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221200333221) 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, 944371452365 + ... + 944371452378.

It is an arithmetic number, because the mean of its divisors is an integer number (3777485809488).

Almost surely, 2^{13221200333201} is an apocalyptic number.

It is an amenable number.

13221200333201 is a deficient number, since it is larger than the sum of its proper divisors (1888742904751).

13221200333201 is an equidigital number, since it uses as much as digits as its factorization.

13221200333201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888742904750.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13221200333201 its reverse (10233300212231), we get a palindrome (23454500545432).

The spelling of 13221200333201 in words is "thirteen trillion, two hundred twenty-one billion, two hundred million, three hundred thirty-three thousand, two hundred one".