2111102010211 has 4 divisors (see below), whose sum is σ = 2111105000592. Its totient is φ = 2111099019832.

The previous prime is 2111102010161. The next prime is 2111102010287. The reversal of 2111102010211 is 1120102011112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111102010211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111102010191 and 2111102010200.

It is not an unprimeable number, because it can be changed into a prime (2111102013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218346 + ... + 2066368.

It is an arithmetic number, because the mean of its divisors is an integer number (527776250148).

Almost surely, 2^{2111102010211} is an apocalyptic number.

2111102010211 is a deficient number, since it is larger than the sum of its proper divisors (2990381).

2111102010211 is a wasteful number, since it uses less digits than its factorization.

2111102010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990380.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2111102010211 its reverse (1120102011112), we get a palindrome (3231204021323).

Subtracting from 2111102010211 its reverse (1120102011112), we obtain a palindrome (990999999099).

The spelling of 2111102010211 in words is "two trillion, one hundred eleven billion, one hundred two million, ten thousand, two hundred eleven".