11210231220 has 24 divisors (see below), whose sum is σ = 31388647584. Its totient is φ = 2989394976.

The previous prime is 11210231143. The next prime is 11210231233. The reversal of 11210231220 is 2213201211.

11210231220 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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11210231220.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 93418534 + ... + 93418653.

It is an arithmetic number, because the mean of its divisors is an integer number (1307860316).

Almost surely, 2^11210231220 is an apocalyptic number.

11210231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210231220 is an abundant number, since it is smaller than the sum of its proper divisors (20178416364).

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

11210231220 is a wasteful number, since it uses less digits than its factorization.

11210231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186837199 (or 186837197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11210231220 its reverse (2213201211), we get a palindrome (13423432431).

The spelling of 11210231220 in words is "eleven billion, two hundred ten million, two hundred thirty-one thousand, two hundred twenty".