2211601 has 8 divisors (see below), whose sum is σ = 2596160. Its totient is φ = 1844208.

The previous prime is 2211593. The next prime is 2211617. The reversal of 2211601 is 1061122.

2211601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2211601 - 2³ = 2211593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4011 + ... + 4528.

It is an arithmetic number, because the mean of its divisors is an integer number (324520).

2^2211601 is an apocalyptic number.

It is an amenable number.

2211601 is a deficient number, since it is larger than the sum of its proper divisors (384559).

2211601 is an equidigital number, since it uses as much as digits as its factorization.

2211601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8583.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2211601 is about 1487.1452518164. The cubic root of 2211601 is about 130.2873525325.

Adding to 2211601 its reverse (1061122), we get a palindrome (3272723).

The spelling of 2211601 in words is "two million, two hundred eleven thousand, six hundred one".