11011211100111 has 16 divisors (see below), whose sum is σ = 15224807596544. Its totient is φ = 7073063433504.

The previous prime is 11011211100107. The next prime is 11011211100157. The reversal of 11011211100111 is 11100111211011.

It is not a de Polignac number, because 11011211100111 - 2² = 11011211100107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011211100191) 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, 481542451 + ... + 481565316.

It is an arithmetic number, because the mean of its divisors is an integer number (951550474784).

Almost surely, 2^{11011211100111} is an apocalyptic number.

11011211100111 is a deficient number, since it is larger than the sum of its proper divisors (4213596496433).

11011211100111 is a wasteful number, since it uses less digits than its factorization.

11011211100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963107910.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11011211100111 its reverse (11100111211011), we get a palindrome (22111322311122).

The spelling of 11011211100111 in words is "eleven trillion, eleven billion, two hundred eleven million, one hundred thousand, one hundred eleven".