212101222112 has 48 divisors (see below), whose sum is σ = 457317388080. Its totient is φ = 96233659392.

The previous prime is 212101222087. The next prime is 212101222121. The reversal of 212101222112 is 211222101212.

212101222112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4296293 + ... + 4345380.

It is an arithmetic number, because the mean of its divisors is an integer number (9527445585).

Almost surely, 2^212101222112 is an apocalyptic number.

It is an amenable number.

212101222112 is an abundant number, since it is smaller than the sum of its proper divisors (245216165968).

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

212101222112 is a wasteful number, since it uses less digits than its factorization.

212101222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641755 (or 8641747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212101222112 its reverse (211222101212), we get a palindrome (423323323324).

The spelling of 212101222112 in words is "two hundred twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred twelve".