11101200218 has 4 divisors (see below), whose sum is σ = 16651800330. Its totient is φ = 5550600108.

The previous prime is 11101200193. The next prime is 11101200247. The reversal of 11101200218 is 81200210111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81200210111 = 19 ⋅4273695269.

It can be written as a sum of positive squares in only one way, i.e., 8555695009 + 2545505209 = 92497^2 + 50453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11101200196 and 11101200205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775300053 + ... + 2775300056.

Almost surely, 2^11101200218 is an apocalyptic number.

11101200218 is a deficient number, since it is larger than the sum of its proper divisors (5550600112).

11101200218 is an equidigital number, since it uses as much as digits as its factorization.

11101200218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550600111.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11101200218 its reverse (81200210111), we get a palindrome (92301410329).

The spelling of 11101200218 in words is "eleven billion, one hundred one million, two hundred thousand, two hundred eighteen".