2126222 has 16 divisors (see below), whose sum is σ = 3771360. Its totient is φ = 879648.

The previous prime is 2126213. The next prime is 2126227. The reversal of 2126222 is 2226212.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2126222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2213 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (235710).

2^2126222 is an apocalyptic number.

2126222 is a deficient number, since it is larger than the sum of its proper divisors (1645138).

2126222 is a wasteful number, since it uses less digits than its factorization.

2126222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275.

The product of its digits is 192, while the sum is 17.

The square root of 2126222 is about 1458.1570560128. The cubic root of 2126222 is about 128.5887187800.

It can be divided in two parts, 21262 and 22, that multiplied together give a palindrome (467764).

The spelling of 2126222 in words is "two million, one hundred twenty-six thousand, two hundred twenty-two".