2112002000 has 80 divisors (see below), whose sum is σ = 5375697600. Its totient is φ = 800323200.

The previous prime is 2112001993. The next prime is 2112002017. The reversal of 2112002000 is 2002112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10211 + ... + 65789.

It is an arithmetic number, because the mean of its divisors is an integer number (67196220).

Almost surely, 2^2112002000 is an apocalyptic number.

2112002000 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 2112002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2687848800).

2112002000 is an abundant number, since it is smaller than the sum of its proper divisors (3263695600).

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

2112002000 is a wasteful number, since it uses less digits than its factorization.

2112002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55621 (or 55605 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2112002000 is about 45956.5229320061. The cubic root of 2112002000 is about 1283.0141369899.

Adding to 2112002000 its reverse (2002112), we get a palindrome (2114004112).

The spelling of 2112002000 in words is "two billion, one hundred twelve million, two thousand".