11233333220 has 12 divisors (see below), whose sum is σ = 23589999804. Its totient is φ = 4493333280.

The previous prime is 11233333213. The next prime is 11233333271. The reversal of 11233333220 is 2233333211.

It can be written as a sum of positive squares in 2 ways, for example, as 1577519524 + 9655813696 = 39718^2 + 98264^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280833311 + ... + 280833350.

It is an arithmetic number, because the mean of its divisors is an integer number (1965833317).

Almost surely, 2^11233333220 is an apocalyptic number.

11233333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11233333220 is an abundant number, since it is smaller than the sum of its proper divisors (12356666584).

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

11233333220 is a wasteful number, since it uses less digits than its factorization.

11233333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561666670 (or 561666668 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 11233333220 its reverse (2233333211), we get a palindrome (13466666431).

Subtracting from 11233333220 its reverse (2233333211), we obtain a palindrome (9000000009).

The spelling of 11233333220 in words is "eleven billion, two hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty".