13200322101221 has 4 divisors (see below), whose sum is σ = 13202393396172. Its totient is φ = 13198250806272.

The previous prime is 13200322101203. The next prime is 13200322101229. The reversal of 13200322101221 is 12210122300231.

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 4916689804321 + 8283632296900 = 2217361^2 + 2878130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13200322101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13200322101193 and 13200322101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200322101229) 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, 1035637916 + ... + 1035650661.

It is an arithmetic number, because the mean of its divisors is an integer number (3300598349043).

Almost surely, 2^{13200322101221} is an apocalyptic number.

It is an amenable number.

13200322101221 is a deficient number, since it is larger than the sum of its proper divisors (2071294951).

13200322101221 is an equidigital number, since it uses as much as digits as its factorization.

13200322101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071294950.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13200322101221 its reverse (12210122300231), we get a palindrome (25410444401452).

The spelling of 13200322101221 in words is "thirteen trillion, two hundred billion, three hundred twenty-two million, one hundred one thousand, two hundred twenty-one".