2111011110211 has 4 divisors (see below), whose sum is σ = 2183804596800. Its totient is φ = 2038217623624.

The previous prime is 2111011110203. The next prime is 2111011110239. The reversal of 2111011110211 is 1120111101112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111011110211 - 2³ = 2111011110203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111011110191 and 2111011110200.

It is not an unprimeable number, because it can be changed into a prime (2111011110281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36396743251 + ... + 36396743308.

It is an arithmetic number, because the mean of its divisors is an integer number (545951149200).

Almost surely, 2^{2111011110211} is an apocalyptic number.

2111011110211 is a deficient number, since it is larger than the sum of its proper divisors (72793486589).

2111011110211 is an equidigital number, since it uses as much as digits as its factorization.

2111011110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72793486588.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 2111011110211 its reverse (1120111101112), we get a palindrome (3231122211323).

Subtracting from 2111011110211 its reverse (1120111101112), we obtain a palindrome (990900009099).

It can be divided in two parts, 2111011 and 110211, that added together give a palindrome (2221222).

The spelling of 2111011110211 in words is "two trillion, one hundred eleven billion, eleven million, one hundred ten thousand, two hundred eleven".