2206111 has 4 divisors (see below), whose sum is σ = 2222352. Its totient is φ = 2189872.

The previous prime is 2206103. The next prime is 2206121. The reversal of 2206111 is 1116022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2206111 - 2³ = 2206103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2206091 and 2206100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206121) 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, 7915 + ... + 8188.

It is an arithmetic number, because the mean of its divisors is an integer number (555588).

2^2206111 is an apocalyptic number.

2206111 is a deficient number, since it is larger than the sum of its proper divisors (16241).

2206111 is a wasteful number, since it uses less digits than its factorization.

2206111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240.

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

The square root of 2206111 is about 1485.2982865405. The cubic root of 2206111 is about 130.1794563006.

The spelling of 2206111 in words is "two million, two hundred six thousand, one hundred eleven".