12144224321 has 8 divisors (see below), whose sum is σ = 12178711584. Its totient is φ = 12109774240.

The previous prime is 12144224299. The next prime is 12144224327. The reversal of 12144224321 is 12342244121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12144224321 - 2¹⁴ = 12144207937 is a prime.

It is a super-2 number, since 2×12144224321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144224327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725381 + ... + 741933.

It is an arithmetic number, because the mean of its divisors is an integer number (1522338948).

Almost surely, 2^12144224321 is an apocalyptic number.

It is an amenable number.

12144224321 is a deficient number, since it is larger than the sum of its proper divisors (34487263).

12144224321 is a wasteful number, since it uses less digits than its factorization.

12144224321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18591.

The product of its digits is 3072, while the sum is 26.

Adding to 12144224321 its reverse (12342244121), we get a palindrome (24486468442).

The spelling of 12144224321 in words is "twelve billion, one hundred forty-four million, two hundred twenty-four thousand, three hundred twenty-one".