2121110211 has 64 divisors (see below), whose sum is σ = 3250368000. Its totient is φ = 1219046400.

The previous prime is 2121110183. The next prime is 2121110219. The reversal of 2121110211 is 1120111212.

It is not a de Polignac number, because 2121110211 - 2²⁷ = 1986892483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121110219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14235565 + ... + 14235713.

It is an arithmetic number, because the mean of its divisors is an integer number (50787000).

Almost surely, 2^2121110211 is an apocalyptic number.

2121110211 is a deficient number, since it is larger than the sum of its proper divisors (1129257789).

2121110211 is a wasteful number, since it uses less digits than its factorization.

2121110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2121110211 is about 46055.5122759480. The cubic root of 2121110211 is about 1284.8558657798.

Adding to 2121110211 its reverse (1120111212), we get a palindrome (3241221423).

The spelling of 2121110211 in words is "two billion, one hundred twenty-one million, one hundred ten thousand, two hundred eleven".