2213111 has 4 divisors (see below), whose sum is σ = 2343312. Its totient is φ = 2082912.

The previous prime is 2213093. The next prime is 2213137. The reversal of 2213111 is 1113122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2213092 and 2213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213171) 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, 65075 + ... + 65108.

It is an arithmetic number, because the mean of its divisors is an integer number (585828).

2^2213111 is an apocalyptic number.

2213111 is a deficient number, since it is larger than the sum of its proper divisors (130201).

2213111 is a wasteful number, since it uses less digits than its factorization.

2213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130200.

The product of its digits is 12, while the sum is 11.

The square root of 2213111 is about 1487.6528492898. The cubic root of 2213111 is about 130.3169975943.

Adding to 2213111 its sum of digits (11), we get a palindrome (2213122).

Adding to 2213111 its reverse (1113122), we get a palindrome (3326233).

The spelling of 2213111 in words is "two million, two hundred thirteen thousand, one hundred eleven".