11100222111 has 32 divisors (see below), whose sum is σ = 17117116416. Its totient is φ = 6334416000.

The previous prime is 11100222053. The next prime is 11100222157. The reversal of 11100222111 is 11122200111.

It is not a de Polignac number, because 11100222111 - 2²¹ = 11098124959 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100222911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108780 + ... + 184481.

It is an arithmetic number, because the mean of its divisors is an integer number (534909888).

Almost surely, 2^11100222111 is an apocalyptic number.

11100222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11100222111 is a deficient number, since it is larger than the sum of its proper divisors (6016894305).

11100222111 is a wasteful number, since it uses less digits than its factorization.

11100222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293343.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11100222111 its reverse (11122200111), we get a palindrome (22222422222).

The spelling of 11100222111 in words is "eleven billion, one hundred million, two hundred twenty-two thousand, one hundred eleven".