14021024421 has 4 divisors (see below), whose sum is σ = 18694699232. Its totient is φ = 9347349612.

The previous prime is 14021024401. The next prime is 14021024447. The reversal of 14021024421 is 12442012041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14021024421 - 2⁶ = 14021024357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14021024401) 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, 2336837401 + ... + 2336837406.

It is an arithmetic number, because the mean of its divisors is an integer number (4673674808).

Almost surely, 2^14021024421 is an apocalyptic number.

It is an amenable number.

14021024421 is a deficient number, since it is larger than the sum of its proper divisors (4673674811).

14021024421 is an equidigital number, since it uses as much as digits as its factorization.

14021024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673674810.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 14021024421 its reverse (12442012041), we get a palindrome (26463036462).

The spelling of 14021024421 in words is "fourteen billion, twenty-one million, twenty-four thousand, four hundred twenty-one".