11011111110211 has 16 divisors (see below), whose sum is σ = 11461472100000. Its totient is φ = 10565470234368.

The previous prime is 11011111110173. The next prime is 11011111110221. The reversal of 11011111110211 is 11201111111011.

It is a cyclic number.

It is not a de Polignac number, because 11011111110211 - 2⁹ = 11011111109699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011111110191 and 11011111110200.

It is not an unprimeable number, because it can be changed into a prime (11011111110221) 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, 76737345 + ... + 76880701.

It is an arithmetic number, because the mean of its divisors is an integer number (716342006250).

Almost surely, 2^{11011111110211} is an apocalyptic number.

11011111110211 is a deficient number, since it is larger than the sum of its proper divisors (450360989789).

11011111110211 is a wasteful number, since it uses less digits than its factorization.

11011111110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159798.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 11011111110211 its reverse (11201111111011), we get a palindrome (22212222221222).

The spelling of 11011111110211 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred ten thousand, two hundred eleven".