13211112320221 has 8 divisors (see below), whose sum is σ = 13738221158400. Its totient is φ = 12688773698160.

The previous prime is 13211112320209. The next prime is 13211112320239. The reversal of 13211112320221 is 12202321111231.

It is a happy number.

13211112320221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13211112320221 - 2³³ = 13202522385629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13211112320192 and 13211112320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211112320201) 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, 1192548381 + ... + 1192559458.

It is an arithmetic number, because the mean of its divisors is an integer number (1717277644800).

Almost surely, 2^{13211112320221} is an apocalyptic number.

It is an amenable number.

13211112320221 is a deficient number, since it is larger than the sum of its proper divisors (527108838179).

13211112320221 is a wasteful number, since it uses less digits than its factorization.

13211112320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385108059.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 13211112320221 its reverse (12202321111231), we get a palindrome (25413433431452).

The spelling of 13211112320221 in words is "thirteen trillion, two hundred eleven billion, one hundred twelve million, three hundred twenty thousand, two hundred twenty-one".