21330013303211 has 8 divisors (see below), whose sum is σ = 21550539464160. Its totient is φ = 21109499981568.

The previous prime is 21330013303199. The next prime is 21330013303217. The reversal of 21330013303211 is 11230331003312.

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 21330013303211 - 2¹⁰ = 21330013302187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330013303217) 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, 148025 + ... + 6533141.

It is an arithmetic number, because the mean of its divisors is an integer number (2693817433020).

Almost surely, 2^{21330013303211} is an apocalyptic number.

21330013303211 is a deficient number, since it is larger than the sum of its proper divisors (220526160949).

21330013303211 is an equidigital number, since it uses as much as digits as its factorization.

21330013303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419653.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21330013303211 its reverse (11230331003312), we get a palindrome (32560344306523).

The spelling of 21330013303211 in words is "twenty-one trillion, three hundred thirty billion, thirteen million, three hundred three thousand, two hundred eleven".