212021112112 has 20 divisors (see below), whose sum is σ = 410844582736. Its totient is φ = 105996703680.

The previous prime is 212021112109. The next prime is 212021112133. The reversal of 212021112112 is 211211120212.

212021112112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 738939 + ... + 984922.

Almost surely, 2^212021112112 is an apocalyptic number.

It is an amenable number.

212021112112 is a deficient number, since it is larger than the sum of its proper divisors (198823470624).

212021112112 is a wasteful number, since it uses less digits than its factorization.

212021112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731556 (or 1731550 counting only the distinct ones).

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

Adding to 212021112112 its reverse (211211120212), we get a palindrome (423232232324).

The spelling of 212021112112 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, one hundred twelve".