11111210110211 has 4 divisors (see below), whose sum is σ = 11113985834952. Its totient is φ = 11108434385472.

The previous prime is 11111210110183. The next prime is 11111210110219. The reversal of 11111210110211 is 11201101211111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111210110211 is a prime.

It is a super-2 number, since 2×11111210110211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111210110219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387856366 + ... + 1387864371.

It is an arithmetic number, because the mean of its divisors is an integer number (2778496458738).

Almost surely, 2^{11111210110211} is an apocalyptic number.

11111210110211 is a deficient number, since it is larger than the sum of its proper divisors (2775724741).

11111210110211 is an equidigital number, since it uses as much as digits as its factorization.

11111210110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775724740.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 11111210110211 its reverse (11201101211111), we get a palindrome (22312311321322).

The spelling of 11111210110211 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, one hundred ten thousand, two hundred eleven".