11101111222111 has 8 divisors (see below), whose sum is σ = 11595552353280. Its totient is φ = 10607652101112.

The previous prime is 11101111222067. The next prime is 11101111222127. The reversal of 11101111222111 is 11122211110111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11101111222111 - 2⁷ = 11101111221983 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 (11101111222181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245479431 + ... + 245524648.

It is an arithmetic number, because the mean of its divisors is an integer number (1449444044160).

Almost surely, 2^{11101111222111} is an apocalyptic number.

11101111222111 is a deficient number, since it is larger than the sum of its proper divisors (494441131169).

11101111222111 is an equidigital number, since it uses as much as digits as its factorization.

11101111222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491005085.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11101111222111 its reverse (11122211110111), we get a palindrome (22223322332222).

The spelling of 11101111222111 in words is "eleven trillion, one hundred one billion, one hundred eleven million, two hundred twenty-two thousand, one hundred eleven".