212012221112 has 16 divisors (see below), whose sum is σ = 397689906600. Its totient is φ = 105961579360.

The previous prime is 212012221061. The next prime is 212012221133. The reversal of 212012221112 is 211122210212.

212012221112 is digitally balanced in base 2 and base 3, because in such bases 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 3 ways as a sum of consecutive naturals, for example, 5546162 + ... + 5584257.

Almost surely, 2^212012221112 is an apocalyptic number.

It is an amenable number.

212012221112 is a deficient number, since it is larger than the sum of its proper divisors (185677685488).

212012221112 is a wasteful number, since it uses less digits than its factorization.

212012221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132806 (or 11132802 counting only the distinct ones).

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

Adding to 212012221112 its reverse (211122210212), we get a palindrome (423134431324).

The spelling of 212012221112 in words is "two hundred twelve billion, twelve million, two hundred twenty-one thousand, one hundred twelve".