212361123412 has 12 divisors (see below), whose sum is σ = 377724293716. Its totient is φ = 104439896640.

The previous prime is 212361123391. The next prime is 212361123437. The reversal of 212361123412 is 214321163212.

212361123412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53729385616 + 158631737796 = 231796^2 + 398286^2 .

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, 435165993 + ... + 435166480.

Almost surely, 2^212361123412 is an apocalyptic number.

It is an amenable number.

212361123412 is a deficient number, since it is larger than the sum of its proper divisors (165363170304).

212361123412 is a wasteful number, since it uses less digits than its factorization.

212361123412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870332538 (or 870332536 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 212361123412 its reverse (214321163212), we get a palindrome (426682286624).

The spelling of 212361123412 in words is "two hundred twelve billion, three hundred sixty-one million, one hundred twenty-three thousand, four hundred twelve".