12442144223 has 8 divisors (see below), whose sum is σ = 12561235008. Its totient is φ = 12323211264.

The previous prime is 12442144219. The next prime is 12442144241. The reversal of 12442144223 is 32244124421.

It is a happy number.

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 12442144223 - 2² = 12442144219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442144523) 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, 122111 + ... + 199487.

It is an arithmetic number, because the mean of its divisors is an integer number (1570154376).

Almost surely, 2^12442144223 is an apocalyptic number.

12442144223 is a deficient number, since it is larger than the sum of its proper divisors (119090785).

12442144223 is a wasteful number, since it uses less digits than its factorization.

12442144223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78913.

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

Adding to 12442144223 its reverse (32244124421), we get a palindrome (44686268644).

The spelling of 12442144223 in words is "twelve billion, four hundred forty-two million, one hundred forty-four thousand, two hundred twenty-three".