13250004221 has 16 divisors (see below), whose sum is σ = 14487782400. Its totient is φ = 12063479040.

The previous prime is 13250004199. The next prime is 13250004223. The reversal of 13250004221 is 12240005231.

13250004221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13250004221 - 2²⁶ = 13182895357 is a prime.

It is a super-2 number, since 2×13250004221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13250004193 and 13250004202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13250004223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394560 + ... + 2400086.

It is an arithmetic number, because the mean of its divisors is an integer number (905486400).

Almost surely, 2^13250004221 is an apocalyptic number.

It is an amenable number.

13250004221 is a deficient number, since it is larger than the sum of its proper divisors (1237778179).

13250004221 is a wasteful number, since it uses less digits than its factorization.

13250004221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 13250004221 its reverse (12240005231), we get a palindrome (25490009452).

The spelling of 13250004221 in words is "thirteen billion, two hundred fifty million, four thousand, two hundred twenty-one".