2522222 has 16 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 1148160.

The previous prime is 2522213. The next prime is 2522227. The reversal of 2522222 is 2222252.

It is a happy number.

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

2522222 is a modest number, since divided by 2222 gives 252 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2522222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (258552).

2^2522222 is an apocalyptic number.

2522222 is a deficient number, since it is larger than the sum of its proper divisors (1614610).

2522222 is a wasteful number, since it uses less digits than its factorization.

2522222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its digits is 320, while the sum is 17.

The square root of 2522222 is about 1588.1504966470. The cubic root of 2522222 is about 136.1218271107.

Adding to 2522222 its reverse (2222252), we get a palindrome (4744474).

It can be divided in two parts, 2522 and 222, that added together give a cube (2744 = 14³).

The spelling of 2522222 in words is "two million, five hundred twenty-two thousand, two hundred twenty-two".