22112100212 has 48 divisors (see below), whose sum is σ = 41201160000. Its totient is φ = 10353982464.

The previous prime is 22112100211. The next prime is 22112100221. The reversal of 22112100212 is 21200121122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112100211) 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 15 ways as a sum of consecutive naturals, for example, 10533539 + ... + 10535637.

It is an arithmetic number, because the mean of its divisors is an integer number (858357500).

Almost surely, 2^22112100212 is an apocalyptic number.

It is an amenable number.

22112100212 is a deficient number, since it is larger than the sum of its proper divisors (19089059788).

22112100212 is a wasteful number, since it uses less digits than its factorization.

22112100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22112100212 its reverse (21200121122), we get a palindrome (43312221334).

The spelling of 22112100212 in words is "twenty-two billion, one hundred twelve million, one hundred thousand, two hundred twelve".