2101133312 has 60 divisors (see below), whose sum is σ = 4226943000. Its totient is φ = 1044381696.

The previous prime is 2101133249. The next prime is 2101133323. The reversal of 2101133312 is 2133311012.

It is a super-2 number, since 2×2101133312² = 8829522389592178688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4210439 + ... + 4210937.

It is an arithmetic number, because the mean of its divisors is an integer number (70449050).

Almost surely, 2^2101133312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113471500).

2101133312 is an abundant number, since it is smaller than the sum of its proper divisors (2125809688).

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

2101133312 is an frugal number, since it uses more digits than its factorization.

2101133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2101133312 is about 45838.1207293667. The cubic root of 2101133312 is about 1280.8094879618.

Adding to 2101133312 its reverse (2133311012), we get a palindrome (4234444324).

The spelling of 2101133312 in words is "two billion, one hundred one million, one hundred thirty-three thousand, three hundred twelve".