21330204014 has 24 divisors (see below), whose sum is σ = 37224312840. Its totient is φ = 9140218416.

The previous prime is 21330204013. The next prime is 21330204019. The reversal of 21330204014 is 41040203312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330204013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054952 + ... + 1074980.

It is an arithmetic number, because the mean of its divisors is an integer number (1551013035).

Almost surely, 2^21330204014 is an apocalyptic number.

21330204014 is a deficient number, since it is larger than the sum of its proper divisors (15894108826).

21330204014 is a wasteful number, since it uses less digits than its factorization.

21330204014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30912 (or 30905 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21330204014 its reverse (41040203312), we get a palindrome (62370407326).

The spelling of 21330204014 in words is "twenty-one billion, three hundred thirty million, two hundred four thousand, fourteen".