2133111222 has 24 divisors (see below), whose sum is σ = 5041899720. Its totient is φ = 646397280.

The previous prime is 2133111221. The next prime is 2133111229. The reversal of 2133111222 is 2221113312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2133111195 and 2133111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133111221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5386447 + ... + 5386842.

It is an arithmetic number, because the mean of its divisors is an integer number (210079155).

Almost surely, 2^2133111222 is an apocalyptic number.

2133111222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2133111222 is an abundant number, since it is smaller than the sum of its proper divisors (2908788498).

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

2133111222 is a wasteful number, since it uses less digits than its factorization.

2133111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10773308 (or 10773305 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2133111222 is about 46185.6170468686. The cubic root of 2133111222 is about 1287.2745016456.

Adding to 2133111222 its reverse (2221113312), we get a palindrome (4354224534).

The spelling of 2133111222 in words is "two billion, one hundred thirty-three million, one hundred eleven thousand, two hundred twenty-two".