22120113012 has 48 divisors (see below), whose sum is σ = 53871562752. Its totient is φ = 7050970080.

The previous prime is 22120113007. The next prime is 22120113013. The reversal of 22120113012 is 21031102122.

It is a junction number, because it is equal to n+sod(n) for n = 22120112982 and 22120113000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120113013) 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, 1418337 + ... + 1433847.

It is an arithmetic number, because the mean of its divisors is an integer number (1122324224).

Almost surely, 2^22120113012 is an apocalyptic number.

It is an amenable number.

22120113012 is an abundant number, since it is smaller than the sum of its proper divisors (31751449740).

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

22120113012 is a wasteful number, since it uses less digits than its factorization.

22120113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20708 (or 20706 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22120113012 its reverse (21031102122), we get a palindrome (43151215134).

The spelling of 22120113012 in words is "twenty-two billion, one hundred twenty million, one hundred thirteen thousand, twelve".