11122233220 has 48 divisors (see below), whose sum is σ = 27261319680. Its totient is φ = 3732200064.

The previous prime is 11122233217. The next prime is 11122233247. The reversal of 11122233220 is 2233222111.

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, 838575 + ... + 851734.

It is an arithmetic number, because the mean of its divisors is an integer number (567944160).

Almost surely, 2^11122233220 is an apocalyptic number.

11122233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122233220 is an abundant number, since it is smaller than the sum of its proper divisors (16139086460).

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

11122233220 is a wasteful number, since it uses less digits than its factorization.

11122233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690372 (or 1690370 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11122233220 its reverse (2233222111), we get a palindrome (13355455331).

The spelling of 11122233220 in words is "eleven billion, one hundred twenty-two million, two hundred thirty-three thousand, two hundred twenty".