2112001000 has 64 divisors (see below), whose sum is σ = 4958703360. Its totient is φ = 841960000.

The previous prime is 2112000971. The next prime is 2112001007. The reversal of 2112001000 is 1002112.

It is not an unprimeable number, because it can be changed into a prime (2112001007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307605 + ... + 314395.

It is an arithmetic number, because the mean of its divisors is an integer number (77479740).

Almost surely, 2^2112001000 is an apocalyptic number.

2112001000 is a gapful number since it is divisible by the number (20) 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 2112001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479351680).

2112001000 is an abundant number, since it is smaller than the sum of its proper divisors (2846702360).

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

2112001000 is a wasteful number, since it uses less digits than its factorization.

2112001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123 (or 7109 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2112001000 is about 45956.5120521564. The cubic root of 2112001000 is about 1283.0139344942.

Adding to 2112001000 its reverse (1002112), we get a palindrome (2113003112).

The spelling of 2112001000 in words is "two billion, one hundred twelve million, one thousand".