212444112 has 20 divisors (see below), whose sum is σ = 548814080. Its totient is φ = 70814688.

The previous prime is 212444093. The next prime is 212444129. The reversal of 212444112 is 211444212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212912 + ... + 2213007.

It is an arithmetic number, because the mean of its divisors is an integer number (27440704).

Almost surely, 2^212444112 is an apocalyptic number.

It is an amenable number.

212444112 is an abundant number, since it is smaller than the sum of its proper divisors (336369968).

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

212444112 is a wasteful number, since it uses less digits than its factorization.

212444112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425930 (or 4425924 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

The square root of 212444112 is about 14575.4626684713. The cubic root of 212444112 is about 596.6892765621.

Adding to 212444112 its reverse (211444212), we get a palindrome (423888324).

The spelling of 212444112 in words is "two hundred twelve million, four hundred forty-four thousand, one hundred twelve".