2133112220 has 24 divisors (see below), whose sum is σ = 4484189808. Its totient is φ = 852358400.

The previous prime is 2133112199. The next prime is 2133112229. The reversal of 2133112220 is 222113312.

It is a super-2 number, since 2×2133112220² = 9100335486226656800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133112229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35501 + ... + 74340.

It is an arithmetic number, because the mean of its divisors is an integer number (186841242).

Almost surely, 2^2133112220 is an apocalyptic number.

2133112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133112220 is an abundant number, since it is smaller than the sum of its proper divisors (2351077588).

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

2133112220 is a wasteful number, since it uses less digits than its factorization.

2133112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110821 (or 110819 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2133112220 is about 46185.6278510967. The cubic root of 2133112220 is about 1287.2747024008.

Adding to 2133112220 its reverse (222113312), we get a palindrome (2355225532).

The spelling of 2133112220 in words is "two billion, one hundred thirty-three million, one hundred twelve thousand, two hundred twenty".