11110222111 has 4 divisors (see below), whose sum is σ = 11112787000. Its totient is φ = 11107657224.

The previous prime is 11110222073. The next prime is 11110222121. The reversal of 11110222111 is 11122201111.

It is a happy number.

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 11110222111 - 2²¹ = 11108124959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110222091 and 11110222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110222121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275936 + ... + 1284613.

It is an arithmetic number, because the mean of its divisors is an integer number (2778196750).

Almost surely, 2^11110222111 is an apocalyptic number.

11110222111 is a deficient number, since it is larger than the sum of its proper divisors (2564889).

11110222111 is an equidigital number, since it uses as much as digits as its factorization.

11110222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564888.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11110222111 its reverse (11122201111), we get a palindrome (22232423222).

The spelling of 11110222111 in words is "eleven billion, one hundred ten million, two hundred twenty-two thousand, one hundred eleven".