14211403021 has 4 divisors (see below), whose sum is σ = 14216852700. Its totient is φ = 14205953344.

The previous prime is 14211403007. The next prime is 14211403033. The reversal of 14211403021 is 12030411241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8603490025 + 5607912996 = 92755^2 + 74886^2 .

It is a cyclic number.

It is not a de Polignac number, because 14211403021 - 2⁷ = 14211402893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14211403021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14211403051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2720926 + ... + 2726143.

It is an arithmetic number, because the mean of its divisors is an integer number (3554213175).

Almost surely, 2^14211403021 is an apocalyptic number.

It is an amenable number.

14211403021 is a deficient number, since it is larger than the sum of its proper divisors (5449679).

14211403021 is an equidigital number, since it uses as much as digits as its factorization.

14211403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449678.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 14211403021 its reverse (12030411241), we get a palindrome (26241814262).

The spelling of 14211403021 in words is "fourteen billion, two hundred eleven million, four hundred three thousand, twenty-one".