21001334014 has 16 divisors (see below), whose sum is σ = 32384664000. Its totient is φ = 10206994464.

The previous prime is 21001333957. The next prime is 21001334077. The reversal of 21001334014 is 41043310012.

It is a junction number, because it is equal to n+sod(n) for n = 21001333982 and 21001334000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59689 + ... + 213460.

It is an arithmetic number, because the mean of its divisors is an integer number (2024041500).

Almost surely, 2^21001334014 is an apocalyptic number.

21001334014 is a deficient number, since it is larger than the sum of its proper divisors (11383329986).

21001334014 is a wasteful number, since it uses less digits than its factorization.

21001334014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274227.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21001334014 its reverse (41043310012), we get a palindrome (62044644026).

The spelling of 21001334014 in words is "twenty-one billion, one million, three hundred thirty-four thousand, fourteen".