21330212035066 has 16 divisors (see below), whose sum is σ = 35755299998208. Its totient is φ = 9459074072800.

The previous prime is 21330212035061. The next prime is 21330212035087. The reversal of 21330212035066 is 66053021203312.

It is not an unprimeable number, because it can be changed into a prime (21330212035061) 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, 11823841690 + ... + 11823843493.

It is an arithmetic number, because the mean of its divisors is an integer number (2234706249888).

Almost surely, 2^{21330212035066} is an apocalyptic number.

21330212035066 is a deficient number, since it is larger than the sum of its proper divisors (14425087963142).

21330212035066 is a wasteful number, since it uses less digits than its factorization.

21330212035066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23647685237.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 21330212035066 its reverse (66053021203312), we get a palindrome (87383233238378).

The spelling of 21330212035066 in words is "twenty-one trillion, three hundred thirty billion, two hundred twelve million, thirty-five thousand, sixty-six".