1222044224 has 56 divisors (see below), whose sum is σ = 2518730040. Its totient is φ = 587575296.

The previous prime is 1222044181. The next prime is 1222044287. The reversal of 1222044224 is 4224402221.

It can be written as a sum of positive squares in 4 ways, for example, as 36481600 + 1185562624 = 6040^2 + 34432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1222044224.

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, 512924 + ... + 515300.

Almost surely, 2^1222044224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222044224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259365020).

1222044224 is an abundant number, since it is smaller than the sum of its proper divisors (1296685816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222044224 is a wasteful number, since it uses less digits than its factorization.

1222044224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1222044224 is about 34957.7491266243. The cubic root of 1222044224 is about 1069.1262042598.

Adding to 1222044224 its reverse (4224402221), we get a palindrome (5446446445).

The spelling of 1222044224 in words is "one billion, two hundred twenty-two million, forty-four thousand, two hundred twenty-four".