22331223120 has 160 divisors (see below), whose sum is σ = 73608860160. Its totient is φ = 5581004800.

The previous prime is 22331223077. The next prime is 22331223179. The reversal of 22331223120 is 2132213322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963670 + ... + 986570.

It is an arithmetic number, because the mean of its divisors is an integer number (460055376).

Almost surely, 2^22331223120 is an apocalyptic number.

22331223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22331223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36804430080).

22331223120 is an abundant number, since it is smaller than the sum of its proper divisors (51277637040).

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

22331223120 is a wasteful number, since it uses less digits than its factorization.

22331223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23173 (or 23167 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22331223120 its reverse (2132213322), we get a palindrome (24463436442).

The spelling of 22331223120 in words is "twenty-two billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred twenty".