2215001 has 4 divisors (see below), whose sum is σ = 2331600. Its totient is φ = 2098404.

The previous prime is 2214997. The next prime is 2215009. The reversal of 2215001 is 1005122.

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 2215001 - 2² = 2214997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2215009) 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, 58271 + ... + 58308.

It is an arithmetic number, because the mean of its divisors is an integer number (582900).

2^2215001 is an apocalyptic number.

It is an amenable number.

2215001 is a deficient number, since it is larger than the sum of its proper divisors (116599).

2215001 is a wasteful number, since it uses less digits than its factorization.

2215001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116598.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2215001 is about 1488.2879425703. The cubic root of 2215001 is about 130.3540840073.

The spelling of 2215001 in words is "two million, two hundred fifteen thousand, one".