13201100221 has 4 divisors (see below), whose sum is σ = 13235932000. Its totient is φ = 13166268444.

The previous prime is 13201100183. The next prime is 13201100243. The reversal of 13201100221 is 12200110231.

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 not a de Polignac number, because 13201100221 - 2¹¹ = 13201098173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201100251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17415321 + ... + 17416078.

It is an arithmetic number, because the mean of its divisors is an integer number (3308983000).

Almost surely, 2^13201100221 is an apocalyptic number.

It is an amenable number.

13201100221 is a deficient number, since it is larger than the sum of its proper divisors (34831779).

13201100221 is an equidigital number, since it uses as much as digits as its factorization.

13201100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34831778.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13201100221 its reverse (12200110231), we get a palindrome (25401210452).

The spelling of 13201100221 in words is "thirteen billion, two hundred one million, one hundred thousand, two hundred twenty-one".