12234420144 has 120 divisors (see below), whose sum is σ = 35547849792. Its totient is φ = 4073509440.

The previous prime is 12234420139. The next prime is 12234420161. The reversal of 12234420144 is 44102443221.

12234420144 is a `hidden beast` number, since 1 + 2 + 234 + 420 + 1 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6107047 + ... + 6109049.

Almost surely, 2^12234420144 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 12234420144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17773924896).

12234420144 is an abundant number, since it is smaller than the sum of its proper divisors (23313429648).

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

12234420144 is a wasteful number, since it uses less digits than its factorization.

12234420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12234420144 its reverse (44102443221), we get a palindrome (56336863365).

The spelling of 12234420144 in words is "twelve billion, two hundred thirty-four million, four hundred twenty thousand, one hundred forty-four".