22421104024 has 64 divisors (see below), whose sum is σ = 48600466560. Its totient is φ = 9583741440.

The previous prime is 22421104021. The next prime is 22421104031. The reversal of 22421104024 is 42040112422.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22421103986 and 22421104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421104021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1949539 + ... + 1961005.

It is an arithmetic number, because the mean of its divisors is an integer number (759382290).

Almost surely, 2^22421104024 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 22421104024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24300233280).

22421104024 is an abundant number, since it is smaller than the sum of its proper divisors (26179362536).

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

22421104024 is a wasteful number, since it uses less digits than its factorization.

22421104024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12808 (or 12804 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22421104024 its reverse (42040112422), we get a palindrome (64461216446).

The spelling of 22421104024 in words is "twenty-two billion, four hundred twenty-one million, one hundred four thousand, twenty-four".