22400012144 has 20 divisors (see below), whose sum is σ = 43413564360. Its totient is φ = 11196511680.

The previous prime is 22400012123. The next prime is 22400012161. The reversal of 22400012144 is 44121000422.

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 3 ways as a sum of consecutive naturals, for example, 165122 + ... + 268449.

It is an arithmetic number, because the mean of its divisors is an integer number (2170678218).

Almost surely, 2^22400012144 is an apocalyptic number.

It is an amenable number.

22400012144 is a deficient number, since it is larger than the sum of its proper divisors (21013552216).

22400012144 is a wasteful number, since it uses less digits than its factorization.

22400012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436808 (or 436802 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22400012144 its reverse (44121000422), we get a palindrome (66521012566).

The spelling of 22400012144 in words is "twenty-two billion, four hundred million, twelve thousand, one hundred forty-four".