212101102012 has 24 divisors (see below), whose sum is σ = 391981516416. Its totient is φ = 100217489328.

The previous prime is 212101102007. The next prime is 212101102019. The reversal of 212101102012 is 210201101212.

212101102012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212101101983 and 212101102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101102019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13880598 + ... + 13895869.

It is an arithmetic number, because the mean of its divisors is an integer number (16332563184).

Almost surely, 2^212101102012 is an apocalyptic number.

It is an amenable number.

212101102012 is a deficient number, since it is larger than the sum of its proper divisors (179880414404).

212101102012 is a wasteful number, since it uses less digits than its factorization.

212101102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27776577 (or 27776575 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212101102012 its reverse (210201101212), we get a palindrome (422302203224).

The spelling of 212101102012 in words is "two hundred twelve billion, one hundred one million, one hundred two thousand, twelve".