13240010221 has 4 divisors (see below), whose sum is σ = 13328869500. Its totient is φ = 13151150944.

The previous prime is 13240010213. The next prime is 13240010243. The reversal of 13240010221 is 12201004231.

13240010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 634334596 + 12605675625 = 25186^2 + 112275^2 .

It is a cyclic number.

It is not a de Polignac number, because 13240010221 - 2³ = 13240010213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13240010195 and 13240010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240010621) 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 3 ways as a sum of consecutive naturals, for example, 44429416 + ... + 44429713.

It is an arithmetic number, because the mean of its divisors is an integer number (3332217375).

Almost surely, 2^13240010221 is an apocalyptic number.

It is an amenable number.

13240010221 is a deficient number, since it is larger than the sum of its proper divisors (88859279).

13240010221 is an equidigital number, since it uses as much as digits as its factorization.

13240010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88859278.

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

Adding to 13240010221 its reverse (12201004231), we get a palindrome (25441014452).

The spelling of 13240010221 in words is "thirteen billion, two hundred forty million, ten thousand, two hundred twenty-one".