20441222 has 16 divisors (see below), whose sum is σ = 31417632. Its totient is φ = 9971520.

The previous prime is 20441203. The next prime is 20441233. The reversal of 20441222 is 22214402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20441222.

It is a congruent number.

It is an unprimeable number.

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, 16103 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (1963602).

Almost surely, 2^20441222 is an apocalyptic number.

20441222 is a deficient number, since it is larger than the sum of its proper divisors (10976410).

20441222 is a wasteful number, since it uses less digits than its factorization.

20441222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20441222 is about 4521.1969654064. The cubic root of 20441222 is about 273.4233615133.

Adding to 20441222 its reverse (22214402), we get a palindrome (42655624).

The spelling of 20441222 in words is "twenty million, four hundred forty-one thousand, two hundred twenty-two".