212101100206 has 16 divisors (see below), whose sum is σ = 326073283200. Its totient is φ = 103412574720.

The previous prime is 212101100137. The next prime is 212101100209. The reversal of 212101100206 is 602001101212.

It is a self number, because there is not a number n which added to its sum of digits gives 212101100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101100209) 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, 475806 + ... + 806593.

It is an arithmetic number, because the mean of its divisors is an integer number (20379580200).

Almost surely, 2^212101100206 is an apocalyptic number.

212101100206 is a deficient number, since it is larger than the sum of its proper divisors (113972182994).

212101100206 is a wasteful number, since it uses less digits than its factorization.

212101100206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284459.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212101100206 its reverse (602001101212), we get a palindrome (814102201418).

The spelling of 212101100206 in words is "two hundred twelve billion, one hundred one million, one hundred thousand, two hundred six".