22100021122012 has 12 divisors (see below), whose sum is σ = 39404754642456. Its totient is φ = 10841519795600.

The previous prime is 22100021121989. The next prime is 22100021122019. The reversal of 22100021122012 is 21022112000122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100021122019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52122691114 + ... + 52122691537.

It is an arithmetic number, because the mean of its divisors is an integer number (3283729553538).

Almost surely, 2^{22100021122012} is an apocalyptic number.

It is an amenable number.

22100021122012 is a deficient number, since it is larger than the sum of its proper divisors (17304733520444).

22100021122012 is a wasteful number, since it uses less digits than its factorization.

22100021122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104245382708 (or 104245382706 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22100021122012 its reverse (21022112000122), we get a palindrome (43122133122134).

The spelling of 22100021122012 in words is "twenty-two trillion, one hundred billion, twenty-one million, one hundred twenty-two thousand, twelve".