212012012112 has 20 divisors (see below), whose sum is σ = 547697698080. Its totient is φ = 70670670688.

The previous prime is 212012012111. The next prime is 212012012117. The reversal of 212012012112 is 211210210212.

It is a junction number, because it is equal to n+sod(n) for n = 212012012091 and 212012012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208458412 + ... + 2208458507.

It is an arithmetic number, because the mean of its divisors is an integer number (27384884904).

Almost surely, 2^212012012112 is an apocalyptic number.

It is an amenable number.

212012012112 is an abundant number, since it is smaller than the sum of its proper divisors (335685685968).

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

212012012112 is a wasteful number, since it uses less digits than its factorization.

212012012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416916930 (or 4416916924 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212012012112 its reverse (211210210212), we get a palindrome (423222222324).

The spelling of 212012012112 in words is "two hundred twelve billion, twelve million, twelve thousand, one hundred twelve".