22120123320 has 48 divisors (see below), whose sum is σ = 71890401960. Its totient is φ = 5898699456.

The previous prime is 22120123313. The next prime is 22120123321. The reversal of 22120123320 is 2332102122.

22120123320 is a `hidden beast` number, since 221 + 2 + 0 + 123 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22120123293 and 22120123302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120123321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30722034 + ... + 30722753.

Almost surely, 2^22120123320 is an apocalyptic number.

22120123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120123320 is an abundant number, since it is smaller than the sum of its proper divisors (49770278640).

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

22120123320 is a wasteful number, since it uses less digits than its factorization.

22120123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61444804 (or 61444797 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22120123320 its reverse (2332102122), we get a palindrome (24452225442).

The spelling of 22120123320 in words is "twenty-two billion, one hundred twenty million, one hundred twenty-three thousand, three hundred twenty".