212101201210 has 16 divisors (see below), whose sum is σ = 381849232392. Its totient is φ = 84825576000.

The previous prime is 212101201183. The next prime is 212101201217. The reversal of 212101201210 is 12102101212.

It can be written as a sum of positive squares in 4 ways, for example, as 210683754009 + 1417447201 = 459003^2 + 37649^2 .

It is not an unprimeable number, because it can be changed into a prime (212101201217) 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, 1803201 + ... + 1917220.

Almost surely, 2^212101201210 is an apocalyptic number.

212101201210 is a deficient number, since it is larger than the sum of its proper divisors (169748031182).

212101201210 is a wasteful number, since it uses less digits than its factorization.

212101201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726129.

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

Adding to 212101201210 its reverse (12102101212), we get a palindrome (224203302422).

The spelling of 212101201210 in words is "two hundred twelve billion, one hundred one million, two hundred one thousand, two hundred ten".