7112222 has 16 divisors (see below), whose sum is σ = 12165552. Its totient is φ = 3089280.

The previous prime is 7112201. The next prime is 7112227. The reversal of 7112222 is 2222117.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 7112222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7112227) 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, 7604 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (760347).

Almost surely, 2^7112222 is an apocalyptic number.

7112222 is a deficient number, since it is larger than the sum of its proper divisors (5053330).

7112222 is a wasteful number, since it uses less digits than its factorization.

7112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16123.

The product of its digits is 112, while the sum is 17.

The square root of 7112222 is about 2666.8749501992. The cubic root of 7112222 is about 192.3099558052.

Adding to 7112222 its reverse (2222117), we get a palindrome (9334339).

The spelling of 7112222 in words is "seven million, one hundred twelve thousand, two hundred twenty-two".