11121223118 has 8 divisors (see below), whose sum is σ = 16683297840. Its totient is φ = 5560123840.

The previous prime is 11121223111. The next prime is 11121223121. The reversal of 11121223118 is 81132212111.

It is a happy number.

11121223118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 11121223093 and 11121223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121223111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214658 + ... + 261381.

It is an arithmetic number, because the mean of its divisors is an integer number (2085412230).

Almost surely, 2^11121223118 is an apocalyptic number.

11121223118 is a deficient number, since it is larger than the sum of its proper divisors (5562074722).

11121223118 is a wasteful number, since it uses less digits than its factorization.

11121223118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487722.

The product of its digits is 192, while the sum is 23.

Adding to 11121223118 its reverse (81132212111), we get a palindrome (92253435229).

The spelling of 11121223118 in words is "eleven billion, one hundred twenty-one million, two hundred twenty-three thousand, one hundred eighteen".