13004201221 has 8 divisors (see below), whose sum is σ = 15020895744. Its totient is φ = 11126589120.

The previous prime is 13004201201. The next prime is 13004201279. The reversal of 13004201221 is 12210240031.

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 13004201221 - 2⁹ = 13004200709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13004201195 and 13004201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13004201201) 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, 34770405 + ... + 34770778.

It is an arithmetic number, because the mean of its divisors is an integer number (1877611968).

Almost surely, 2^13004201221 is an apocalyptic number.

13004201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13004201221 is a deficient number, since it is larger than the sum of its proper divisors (2016694523).

13004201221 is a wasteful number, since it uses less digits than its factorization.

13004201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69541211.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13004201221 its reverse (12210240031), we get a palindrome (25214441252).

The spelling of 13004201221 in words is "thirteen billion, four million, two hundred one thousand, two hundred twenty-one".