212112021112 has 8 divisors (see below), whose sum is σ = 397710039600. Its totient is φ = 106056010552.

The previous prime is 212112021103. The next prime is 212112021139. The reversal of 212112021112 is 211120211212.

212112021112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 13257001312 + ... + 13257001327.

It is an arithmetic number, because the mean of its divisors is an integer number (49713754950).

Almost surely, 2^212112021112 is an apocalyptic number.

It is an amenable number.

212112021112 is a deficient number, since it is larger than the sum of its proper divisors (185598018488).

212112021112 is a wasteful number, since it uses less digits than its factorization.

212112021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26514002645 (or 26514002641 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212112021112 its reverse (211120211212), we get a palindrome (423232232324).

The spelling of 212112021112 in words is "two hundred twelve billion, one hundred twelve million, twenty-one thousand, one hundred twelve".