212120110211 has 16 divisors (see below), whose sum is σ = 221659986240. Its totient is φ = 202729564800.

The previous prime is 212120110207. The next prime is 212120110219. The reversal of 212120110211 is 112011021212.

It is a cyclic number.

It is not a de Polignac number, because 212120110211 - 2² = 212120110207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120110219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21192170 + ... + 21202176.

It is an arithmetic number, because the mean of its divisors is an integer number (13853749140).

Almost surely, 2^212120110211 is an apocalyptic number.

212120110211 is a deficient number, since it is larger than the sum of its proper divisors (9539876029).

212120110211 is a wasteful number, since it uses less digits than its factorization.

212120110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212120110211 its reverse (112011021212), we get a palindrome (324131131423).

The spelling of 212120110211 in words is "two hundred twelve billion, one hundred twenty million, one hundred ten thousand, two hundred eleven".