11220020218 has 32 divisors (see below), whose sum is σ = 19166440320. Its totient is φ = 4876196160.

The previous prime is 11220020197. The next prime is 11220020219. The reversal of 11220020218 is 81202002211.

It is a junction number, because it is equal to n+sod(n) for n = 11220020195 and 11220020204.

It is not an unprimeable number, because it can be changed into a prime (11220020219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2283148 + ... + 2288056.

It is an arithmetic number, because the mean of its divisors is an integer number (598951260).

Almost surely, 2^11220020218 is an apocalyptic number.

11220020218 is a deficient number, since it is larger than the sum of its proper divisors (7946420102).

11220020218 is a wasteful number, since it uses less digits than its factorization.

11220020218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11220020218 its reverse (81202002211), we get a palindrome (92422022429).

The spelling of 11220020218 in words is "eleven billion, two hundred twenty million, twenty thousand, two hundred eighteen".