12022320144 has 40 divisors (see below), whose sum is σ = 31074439680. Its totient is φ = 4005275008.

The previous prime is 12022320119. The next prime is 12022320157. The reversal of 12022320144 is 44102322021.

It is a self number, because there is not a number n which added to its sum of digits gives 12022320144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23377 + ... + 156815.

It is an arithmetic number, because the mean of its divisors is an integer number (776860992).

Almost surely, 2^12022320144 is an apocalyptic number.

It is an amenable number.

12022320144 is an abundant number, since it is smaller than the sum of its proper divisors (19052119536).

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

12022320144 is a wasteful number, since it uses less digits than its factorization.

12022320144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135327 (or 135321 counting only the distinct ones).

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

Adding to 12022320144 its reverse (44102322021), we get a palindrome (56124642165).

The spelling of 12022320144 in words is "twelve billion, twenty-two million, three hundred twenty thousand, one hundred forty-four".