12141421424 has 80 divisors (see below), whose sum is σ = 26944061184. Its totient is φ = 5246208000.

The previous prime is 12141421417. The next prime is 12141421427. The reversal of 12141421424 is 42412414121.

It is a super-2 number, since 2×12141421424² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12141421393 and 12141421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141421427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650624 + ... + 669024.

Almost surely, 2^12141421424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12141421424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13472030592).

12141421424 is an abundant number, since it is smaller than the sum of its proper divisors (14802639760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12141421424 is a wasteful number, since it uses less digits than its factorization.

12141421424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18606 (or 18600 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

Adding to 12141421424 its reverse (42412414121), we get a palindrome (54553835545).

The spelling of 12141421424 in words is "twelve billion, one hundred forty-one million, four hundred twenty-one thousand, four hundred twenty-four".