22043556912 has 60 divisors (see below), whose sum is σ = 61663286184. Its totient is φ = 6782630400.

The previous prime is 22043556901. The next prime is 22043556917. The reversal of 22043556912 is 21965534022.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (22043556917) 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 11 ways as a sum of consecutive naturals, for example, 1350589 + ... + 1366812.

Almost surely, 2^22043556912 is an apocalyptic number.

It is an amenable number.

22043556912 is an abundant number, since it is smaller than the sum of its proper divisors (39619729272).

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

22043556912 is a wasteful number, since it uses less digits than its factorization.

22043556912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717438 (or 2717419 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 22043556912 in words is "twenty-two billion, forty-three million, five hundred fifty-six thousand, nine hundred twelve".