11100211210111 has 4 divisors (see below), whose sum is σ = 11101609757952. Its totient is φ = 11098812662272.

The previous prime is 11100211210051. The next prime is 11100211210139. The reversal of 11100211210111 is 11101211200111.

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

It is a cyclic number.

It is not a de Polignac number, because 11100211210111 - 2²⁷ = 11100076992383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100211210091 and 11100211210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100211210211) 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 3 ways as a sum of consecutive naturals, for example, 699262015 + ... + 699277888.

It is an arithmetic number, because the mean of its divisors is an integer number (2775402439488).

Almost surely, 2^{11100211210111} is an apocalyptic number.

11100211210111 is a deficient number, since it is larger than the sum of its proper divisors (1398547841).

11100211210111 is an equidigital number, since it uses as much as digits as its factorization.

11100211210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398547840.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11100211210111 its reverse (11101211200111), we get a palindrome (22201422410222).

The spelling of 11100211210111 in words is "eleven trillion, one hundred billion, two hundred eleven million, two hundred ten thousand, one hundred eleven".