2112815000 has 40 divisors (see below), whose sum is σ = 4950337260. Its totient is φ = 845124000.

The previous prime is 2112814997. The next prime is 2112815011. The reversal of 2112815000 is 5182112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 206282 + ... + 216281.

Almost surely, 2^2112815000 is an apocalyptic number.

2112815000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112815000 is an abundant number, since it is smaller than the sum of its proper divisors (2837522260).

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

2112815000 is an equidigital number, since it uses as much as digits as its factorization.

2112815000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422589 (or 422570 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 2112815000 is about 45965.3673976397. The cubic root of 2112815000 is about 1283.1787448957.

Adding to 2112815000 its reverse (5182112), we get a palindrome (2117997112).

The spelling of 2112815000 in words is "two billion, one hundred twelve million, eight hundred fifteen thousand".