22331231120 has 80 divisors (see below), whose sum is σ = 57160002240. Its totient is φ = 8045913600.

The previous prime is 22331231089. The next prime is 22331231129. The reversal of 22331231120 is 2113213322.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22331231092 and 22331231101.

It is not an unprimeable number, because it can be changed into a prime (22331231129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20486 + ... + 212325.

It is an arithmetic number, because the mean of its divisors is an integer number (714500028).

Almost surely, 2^22331231120 is an apocalyptic number.

22331231120 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 22331231120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28580001120).

22331231120 is an abundant number, since it is smaller than the sum of its proper divisors (34828771120).

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

22331231120 is a wasteful number, since it uses less digits than its factorization.

22331231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232944 (or 232938 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22331231120 its reverse (2113213322), we get a palindrome (24444444442).

The spelling of 22331231120 in words is "twenty-two billion, three hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty".