2112001 has 4 divisors (see below), whose sum is σ = 2119104. Its totient is φ = 2104900.

The previous prime is 2111971. The next prime is 2112007. The reversal of 2112001 is 1002112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112001 - 2⁵ = 2111969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085 + ... + 3706.

It is an arithmetic number, because the mean of its divisors is an integer number (529776).

2^2112001 is an apocalyptic number.

It is an amenable number.

2112001 is a deficient number, since it is larger than the sum of its proper divisors (7103).

2112001 is an equidigital number, since it uses as much as digits as its factorization.

2112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102.

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

The square root of 2112001 is about 1453.2725140179. The cubic root of 2112001 is about 128.3013934494.

Adding to 2112001 its reverse (1002112), we get a palindrome (3114113).

The spelling of 2112001 in words is "two million, one hundred twelve thousand, one".