11133233220 has 192 divisors, whose sum is σ = 32603913216. Its totient is φ = 2836753920.

The previous prime is 11133233161. The next prime is 11133233227. The reversal of 11133233220 is 2233233111.

It is not an unprimeable number, because it can be changed into a prime (11133233227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20352987 + ... + 20353533.

It is an arithmetic number, because the mean of its divisors is an integer number (169812048).

Almost surely, 2^11133233220 is an apocalyptic number.

11133233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11133233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16301956608).

11133233220 is an abundant number, since it is smaller than the sum of its proper divisors (21470679996).

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

11133233220 is a wasteful number, since it uses less digits than its factorization.

11133233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 11133233220 its reverse (2233233111), we get a palindrome (13366466331).

The spelling of 11133233220 in words is "eleven billion, one hundred thirty-three million, two hundred thirty-three thousand, two hundred twenty".