12344214421 has 16 divisors (see below), whose sum is σ = 15517392768. Its totient is φ = 9618861120.

The previous prime is 12344214419. The next prime is 12344214433. The reversal of 12344214421 is 12441244321.

It is not a de Polignac number, because 12344214421 - 2¹ = 12344214419 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 12344214421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344214521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 653140 + ... + 671773.

It is an arithmetic number, because the mean of its divisors is an integer number (969837048).

Almost surely, 2^12344214421 is an apocalyptic number.

12344214421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12344214421 is a deficient number, since it is larger than the sum of its proper divisors (3173178347).

12344214421 is an equidigital number, since it uses as much as digits as its factorization.

12344214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324953 (or 1324931 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 12344214421 its reverse (12441244321), we get a palindrome (24785458742).

The spelling of 12344214421 in words is "twelve billion, three hundred forty-four million, two hundred fourteen thousand, four hundred twenty-one".