22100000221012 has 12 divisors (see below), whose sum is σ = 44200000442080. Its totient is φ = 9471428666136.

The previous prime is 22100000220997. The next prime is 22100000221073. The reversal of 22100000221012 is 21012200000122.

It is a happy number.

22100000221012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22100000220983 and 22100000221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394642861062 + ... + 394642861117.

Almost surely, 2^{22100000221012} is an apocalyptic number.

It is an amenable number.

22100000221012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22100000221012 is a wasteful number, since it uses less digits than its factorization.

22100000221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789285722190 (or 789285722188 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100000221012 its reverse (21012200000122), we get a palindrome (43112200221134).

The spelling of 22100000221012 in words is "twenty-two trillion, one hundred billion, two hundred twenty-one thousand, twelve".