21330212333 has 8 divisors (see below), whose sum is σ = 21589104768. Its totient is φ = 21072550464.

The previous prime is 21330212329. The next prime is 21330212503. The reversal of 21330212333 is 33321203312.

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 21330212333 - 2² = 21330212329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21330212299 and 21330212308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330217333) 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, 272741 + ... + 342122.

It is an arithmetic number, because the mean of its divisors is an integer number (2698638096).

Almost surely, 2^21330212333 is an apocalyptic number.

It is an amenable number.

21330212333 is a deficient number, since it is larger than the sum of its proper divisors (258892435).

21330212333 is a wasteful number, since it uses less digits than its factorization.

21330212333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615283.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21330212333 its reverse (33321203312), we get a palindrome (54651415645).

The spelling of 21330212333 in words is "twenty-one billion, three hundred thirty million, two hundred twelve thousand, three hundred thirty-three".