11203222020 has 48 divisors (see below), whose sum is σ = 33214261248. Its totient is φ = 2811788800.

The previous prime is 11203221983. The next prime is 11203222033. The reversal of 11203222020 is 2022230211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5490756 + ... + 5492795.

It is an arithmetic number, because the mean of its divisors is an integer number (691963776).

Almost surely, 2^11203222020 is an apocalyptic number.

11203222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203222020 is an abundant number, since it is smaller than the sum of its proper divisors (22011039228).

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

11203222020 is a wasteful number, since it uses less digits than its factorization.

11203222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10983580 (or 10983578 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 11203222020 its reverse (2022230211), we get a palindrome (13225452231).

The spelling of 11203222020 in words is "eleven billion, two hundred three million, two hundred twenty-two thousand, twenty".