212105116466 has 16 divisors (see below), whose sum is σ = 323659908000. Its totient is φ = 104219699808.

The previous prime is 212105116463. The next prime is 212105116507. The reversal of 212105116466 is 664611501212.

212105116466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212105116463) 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 7 ways as a sum of consecutive naturals, for example, 46310 + ... + 652958.

It is an arithmetic number, because the mean of its divisors is an integer number (20228744250).

Almost surely, 2^212105116466 is an apocalyptic number.

212105116466 is a deficient number, since it is larger than the sum of its proper divisors (111554791534).

212105116466 is a wasteful number, since it uses less digits than its factorization.

212105116466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609673.

The product of its (nonzero) digits is 17280, while the sum is 35.

Adding to 212105116466 its reverse (664611501212), we get a palindrome (876716617678).

The spelling of 212105116466 in words is "two hundred twelve billion, one hundred five million, one hundred sixteen thousand, four hundred sixty-six".