14421221231 has 4 divisors (see below), whose sum is σ = 14421819072. Its totient is φ = 14420623392.

The previous prime is 14421221219. The next prime is 14421221233. The reversal of 14421221231 is 13212212441.

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

It is a cyclic number.

It is not a de Polignac number, because 14421221231 - 2²² = 14417026927 is a prime.

It is a super-2 number, since 2×14421221231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14421221197 and 14421221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14421221233) 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, 261146 + ... + 311511.

It is an arithmetic number, because the mean of its divisors is an integer number (3605454768).

Almost surely, 2^14421221231 is an apocalyptic number.

14421221231 is a deficient number, since it is larger than the sum of its proper divisors (597841).

14421221231 is an equidigital number, since it uses as much as digits as its factorization.

14421221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597840.

The product of its digits is 768, while the sum is 23.

Adding to 14421221231 its reverse (13212212441), we get a palindrome (27633433672).

The spelling of 14421221231 in words is "fourteen billion, four hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-one".