11111030220 has 48 divisors (see below), whose sum is σ = 31200599808. Its totient is φ = 2954397120.

The previous prime is 11111030209. The next prime is 11111030239. The reversal of 11111030220 is 2203011111.

11111030220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11111030196 and 11111030205.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 246016 + ... + 287655.

It is an arithmetic number, because the mean of its divisors is an integer number (650012496).

Almost surely, 2^11111030220 is an apocalyptic number.

11111030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111030220 is an abundant number, since it is smaller than the sum of its proper divisors (20089569588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111030220 is a wasteful number, since it uses less digits than its factorization.

11111030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534030 (or 534028 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11111030220 its reverse (2203011111), we get a palindrome (13314041331).

The spelling of 11111030220 in words is "eleven billion, one hundred eleven million, thirty thousand, two hundred twenty".