2222111 has 8 divisors (see below), whose sum is σ = 2348544. Its totient is φ = 2099160.

The previous prime is 2222093. The next prime is 2222123. The reversal of 2222111 is 1112222.

It is a happy number.

2222111 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 2222111 - 2¹⁸ = 1959967 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2222092 and 2222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222141) 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, 500 + ... + 2166.

It is an arithmetic number, because the mean of its divisors is an integer number (293568).

2^2222111 is an apocalyptic number.

2222111 is a deficient number, since it is larger than the sum of its proper divisors (126433).

2222111 is a wasteful number, since it uses less digits than its factorization.

2222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741.

The product of its digits is 16, while the sum is 11.

The square root of 2222111 is about 1490.6746794656. The cubic root of 2222111 is about 130.4934109012.

Adding to 2222111 its reverse (1112222), we get a palindrome (3334333).

It can be divided in two parts, 2222 and 111, that multiplied together give a palindrome (246642).

The spelling of 2222111 in words is "two million, two hundred twenty-two thousand, one hundred eleven".