212021112344 has 16 divisors (see below), whose sum is σ = 397607501520. Its totient is φ = 105992445280.

The previous prime is 212021112343. The next prime is 212021112367. The reversal of 212021112344 is 443211120212.

212021112344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021112343) by changing a digit.

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, 2214044 + ... + 2307819.

It is an arithmetic number, because the mean of its divisors is an integer number (24850468845).

Almost surely, 2^212021112344 is an apocalyptic number.

It is an amenable number.

212021112344 is a deficient number, since it is larger than the sum of its proper divisors (185586389176).

212021112344 is a wasteful number, since it uses less digits than its factorization.

212021112344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527730 (or 4527726 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212021112344 its reverse (443211120212), we get a palindrome (655232232556).

The spelling of 212021112344 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, three hundred forty-four".