21330112213 has 8 divisors (see below), whose sum is σ = 21356913600. Its totient is φ = 21303329568.

The previous prime is 21330112207. The next prime is 21330112229. The reversal of 21330112213 is 31221103312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21330112213 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 (21330112273) 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, 5053618 + ... + 5057836.

It is an arithmetic number, because the mean of its divisors is an integer number (2669614200).

Almost surely, 2^21330112213 is an apocalyptic number.

It is an amenable number.

21330112213 is a deficient number, since it is larger than the sum of its proper divisors (26801387).

21330112213 is a wasteful number, since it uses less digits than its factorization.

21330112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9371.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21330112213 its reverse (31221103312), we get a palindrome (52551215525).

The spelling of 21330112213 in words is "twenty-one billion, three hundred thirty million, one hundred twelve thousand, two hundred thirteen".