11203210220 has 12 divisors (see below), whose sum is σ = 23526741504. Its totient is φ = 4481284080.

The previous prime is 11203210129. The next prime is 11203210229. The reversal of 11203210220 is 2201230211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11203210195 and 11203210204.

It is not an unprimeable number, because it can be changed into a prime (11203210229) 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, 280080236 + ... + 280080275.

It is an arithmetic number, because the mean of its divisors is an integer number (1960561792).

Almost surely, 2^11203210220 is an apocalyptic number.

11203210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203210220 is an abundant number, since it is smaller than the sum of its proper divisors (12323531284).

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

11203210220 is a wasteful number, since it uses less digits than its factorization.

11203210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560160520 (or 560160518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11203210220 its reverse (2201230211), we get a palindrome (13404440431).

The spelling of 11203210220 in words is "eleven billion, two hundred three million, two hundred ten thousand, two hundred twenty".