12144224243 has 16 divisors (see below), whose sum is σ = 12916519200. Its totient is φ = 11385561600.

The previous prime is 12144224207. The next prime is 12144224299. The reversal of 12144224243 is 34242244121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12144224243 - 2¹⁸ = 12143962099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12144223243) 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, 1501013 + ... + 1509081.

It is an arithmetic number, because the mean of its divisors is an integer number (807282450).

Almost surely, 2^12144224243 is an apocalyptic number.

12144224243 is a deficient number, since it is larger than the sum of its proper divisors (772294957).

12144224243 is a wasteful number, since it uses less digits than its factorization.

12144224243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8902.

The product of its digits is 12288, while the sum is 29.

Adding to 12144224243 its reverse (34242244121), we get a palindrome (46386468364).

The spelling of 12144224243 in words is "twelve billion, one hundred forty-four million, two hundred twenty-four thousand, two hundred forty-three".