22123132144 has 80 divisors (see below), whose sum is σ = 46635904000. Its totient is φ = 10128084480.

The previous prime is 22123132091. The next prime is 22123132151. The reversal of 22123132144 is 44123132122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13748812 + ... + 13750420.

It is an arithmetic number, because the mean of its divisors is an integer number (582948800).

Almost surely, 2^22123132144 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 22123132144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23317952000).

22123132144 is an abundant number, since it is smaller than the sum of its proper divisors (24512771856).

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

22123132144 is a wasteful number, since it uses less digits than its factorization.

22123132144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126 (or 3120 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 22123132144 its reverse (44123132122), we get a palindrome (66246264266).

The spelling of 22123132144 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred forty-four".