2212111 has 4 divisors (see below), whose sum is σ = 2413224. Its totient is φ = 2011000.

The previous prime is 2212099. The next prime is 2212123. The reversal of 2212111 is 1112122.

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

It is an interprime number because it is at equal distance from previous prime (2212099) and next prime (2212123).

It is a cyclic number.

It is not a de Polignac number, because 2212111 - 2⁷ = 2211983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212141) 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, 100540 + ... + 100561.

It is an arithmetic number, because the mean of its divisors is an integer number (603306).

2^2212111 is an apocalyptic number.

2212111 is a deficient number, since it is larger than the sum of its proper divisors (201113).

2212111 is a wasteful number, since it uses less digits than its factorization.

2212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201112.

The product of its digits is 8, while the sum is 10.

The square root of 2212111 is about 1487.3167113967. The cubic root of 2212111 is about 130.2973666117.

Adding to 2212111 its reverse (1112122), we get a palindrome (3324233).

It can be divided in two parts, 221 and 2111, that added together give a palindrome (2332).

The spelling of 2212111 in words is "two million, two hundred twelve thousand, one hundred eleven".