12123022044 has 96 divisors (see below), whose sum is σ = 32698713600. Its totient is φ = 3424223232.

The previous prime is 12123022039. The next prime is 12123022103. The reversal of 12123022044 is 44022032121.

12123022044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12123022044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2955507 + ... + 2959605.

It is an arithmetic number, because the mean of its divisors is an integer number (340611600).

Almost surely, 2^12123022044 is an apocalyptic number.

12123022044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12123022044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16349356800).

12123022044 is an abundant number, since it is smaller than the sum of its proper divisors (20575691556).

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

12123022044 is a wasteful number, since it uses less digits than its factorization.

12123022044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507 (or 4505 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12123022044 its reverse (44022032121), we get a palindrome (56145054165).

The spelling of 12123022044 in words is "twelve billion, one hundred twenty-three million, twenty-two thousand, forty-four".