22123421424 has 120 divisors (see below), whose sum is σ = 69576692640. Its totient is φ = 6511228416.

The previous prime is 22123421417. The next prime is 22123421449. The reversal of 22123421424 is 42412432122.

It is a happy number.

22123421424 is a `hidden beast` number, since 2 + 2 + 1 + 234 + 2 + 1 + 424 = 666.

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 213859 + ... + 299970.

It is an arithmetic number, because the mean of its divisors is an integer number (579805772).

Almost surely, 2^22123421424 is an apocalyptic number.

22123421424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22123421424 is an abundant number, since it is smaller than the sum of its proper divisors (47453271216).

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

22123421424 is a wasteful number, since it uses less digits than its factorization.

22123421424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513879 (or 513870 counting only the distinct ones).

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

Adding to 22123421424 its reverse (42412432122), we get a palindrome (64535853546).

The spelling of 22123421424 in words is "twenty-two billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred twenty-four".