13630941221 has 16 divisors (see below), whose sum is σ = 14710886400. Its totient is φ = 12587788800.

The previous prime is 13630941209. The next prime is 13630941239. The reversal of 13630941221 is 12214903631.

13630941221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13630941221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13630941251) 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, 989501 + ... + 1003181.

It is an arithmetic number, because the mean of its divisors is an integer number (919430400).

Almost surely, 2^13630941221 is an apocalyptic number.

It is an amenable number.

13630941221 is a deficient number, since it is larger than the sum of its proper divisors (1079945179).

13630941221 is a wasteful number, since it uses less digits than its factorization.

13630941221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 13630941221 in words is "thirteen billion, six hundred thirty million, nine hundred forty-one thousand, two hundred twenty-one".