2112815001 has 24 divisors (see below), whose sum is σ = 3126585280. Its totient is φ = 1268039520.

The previous prime is 2112814997. The next prime is 2112815011. The reversal of 2112815001 is 1005182112.

It is not a de Polignac number, because 2112815001 - 2² = 2112814997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112815011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9135 + ... + 65643.

Almost surely, 2^2112815001 is an apocalyptic number.

It is an amenable number.

2112815001 is a deficient number, since it is larger than the sum of its proper divisors (1013770279).

2112815001 is a wasteful number, since it uses less digits than its factorization.

2112815001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56637 (or 56626 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 2112815001 is about 45965.3674085175. The cubic root of 2112815001 is about 1283.1787450981.

Adding to 2112815001 its reverse (1005182112), we get a palindrome (3117997113).

The spelling of 2112815001 in words is "two billion, one hundred twelve million, eight hundred fifteen thousand, one".