11112110111211 has 32 divisors (see below), whose sum is σ = 15573425598720. Its totient is φ = 7038888522624.

The previous prime is 11112110111189. The next prime is 11112110111243. The reversal of 11112110111211 is 11211101121111.

It is a happy number.

It is not a de Polignac number, because 11112110111211 - 2¹⁹ = 11112109586923 is a prime.

It is a super-2 number, since 2×11112110111211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11112110111411) 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 31 ways as a sum of consecutive naturals, for example, 25120596 + ... + 25559118.

It is an arithmetic number, because the mean of its divisors is an integer number (486669549960).

Almost surely, 2^{11112110111211} is an apocalyptic number.

11112110111211 is a deficient number, since it is larger than the sum of its proper divisors (4461315487509).

11112110111211 is a wasteful number, since it uses less digits than its factorization.

11112110111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443915.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 11112110111211 its reverse (11211101121111), we get a palindrome (22323211232322).

The spelling of 11112110111211 in words is "eleven trillion, one hundred twelve billion, one hundred ten million, one hundred eleven thousand, two hundred eleven".