11122212118 has 8 divisors (see below), whose sum is σ = 16694852112. Its totient is φ = 5557261416.

The previous prime is 11122212109. The next prime is 11122212119. The reversal of 11122212118 is 81121222111.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122212119) 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, 1918705 + ... + 1924492.

It is an arithmetic number, because the mean of its divisors is an integer number (2086856514).

Almost surely, 2^11122212118 is an apocalyptic number.

11122212118 is a deficient number, since it is larger than the sum of its proper divisors (5572639994).

11122212118 is a wasteful number, since it uses less digits than its factorization.

11122212118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844646.

The product of its digits is 128, while the sum is 22.

Adding to 11122212118 its reverse (81121222111), we get a palindrome (92243434229).

The spelling of 11122212118 in words is "eleven billion, one hundred twenty-two million, two hundred twelve thousand, one hundred eighteen".