22111840512 has 72 divisors (see below), whose sum is σ = 65388622880. Its totient is φ = 7370611200.

The previous prime is 22111840493. The next prime is 22111840519. The reversal of 22111840512 is 21504811122.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22111840519) 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 7 ways as a sum of consecutive naturals, for example, 1592614 + ... + 1606437.

Almost surely, 2^22111840512 is an apocalyptic number.

It is an amenable number.

22111840512 is an abundant number, since it is smaller than the sum of its proper divisors (43276782368).

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

22111840512 is an equidigital number, since it uses as much as digits as its factorization.

22111840512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199076 (or 3199056 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The spelling of 22111840512 in words is "twenty-two billion, one hundred eleven million, eight hundred forty thousand, five hundred twelve".