212130112210 has 8 divisors (see below), whose sum is σ = 381834201996. Its totient is φ = 84852044880.

The previous prime is 212130112177. The next prime is 212130112213. The reversal of 212130112210 is 12211031212.

It can be written as a sum of positive squares in 2 ways, for example, as 201203382249 + 10926729961 = 448557^2 + 104531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212130112213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10606505601 + ... + 10606505620.

Almost surely, 2^212130112210 is an apocalyptic number.

212130112210 is a deficient number, since it is larger than the sum of its proper divisors (169704089786).

212130112210 is a wasteful number, since it uses less digits than its factorization.

212130112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21213011228.

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

Adding to 212130112210 its reverse (12211031212), we get a palindrome (224341143422).

The spelling of 212130112210 in words is "two hundred twelve billion, one hundred thirty million, one hundred twelve thousand, two hundred ten".