111211200011211 has 16 divisors (see below), whose sum is σ = 148416312541728. Its totient is φ = 74073473568000.

The previous prime is 111211200011203. The next prime is 111211200011227. The reversal of 111211200011211 is 112110002112111.

It is not a de Polignac number, because 111211200011211 - 2³ = 111211200011203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111211200013211) 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, 11199021 + ... + 18650481.

It is an arithmetic number, because the mean of its divisors is an integer number (9276019533858).

Almost surely, 2^{111211200011211} is an apocalyptic number.

111211200011211 is a deficient number, since it is larger than the sum of its proper divisors (37205112530517).

111211200011211 is a wasteful number, since it uses less digits than its factorization.

111211200011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7455982.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111211200011211 its reverse (112110002112111), we get a palindrome (223321202123322).

The spelling of 111211200011211 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred million, eleven thousand, two hundred eleven".