212101010210 has 16 divisors (see below), whose sum is σ = 381867099192. Its totient is φ = 84821452800.

The previous prime is 212101010207. The next prime is 212101010267. The reversal of 212101010210 is 12010101212.

It can be written as a sum of positive squares in 4 ways, for example, as 201549817249 + 10551192961 = 448943^2 + 102719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212101010191 and 212101010200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2321861 + ... + 2411480.

Almost surely, 2^212101010210 is an apocalyptic number.

212101010210 is a deficient number, since it is larger than the sum of its proper divisors (169766088982).

212101010210 is a wasteful number, since it uses less digits than its factorization.

212101010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737829.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212101010210 its reverse (12010101212), we get a palindrome (224111111422).

The spelling of 212101010210 in words is "two hundred twelve billion, one hundred one million, ten thousand, two hundred ten".