121112202110211 has 20 divisors (see below), whose sum is σ = 194837673671872. Its totient is φ = 74530585913328.

The previous prime is 121112202110177. The next prime is 121112202110261. The reversal of 121112202110211 is 112011202211121.

It is a happy number.

121112202110211 is a `hidden beast` number, since 1 + 21 + 1 + 1 + 220 + 211 + 0 + 211 = 666.

It is not a de Polignac number, because 121112202110211 - 2³³ = 121103612175619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112202110261) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57508167091 + ... + 57508169196.

Almost surely, 2^{121112202110211} is an apocalyptic number.

121112202110211 is a deficient number, since it is larger than the sum of its proper divisors (73725471561661).

121112202110211 is a wasteful number, since it uses less digits than its factorization.

121112202110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115016336312 (or 115016336303 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121112202110211 its reverse (112011202211121), we get a palindrome (233123404321332).

The spelling of 121112202110211 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred two million, one hundred ten thousand, two hundred eleven".