1222345244 has 24 divisors (see below), whose sum is σ = 2250385200. Its totient is φ = 580092800.

The previous prime is 1222345231. The next prime is 1222345249. The reversal of 1222345244 is 4425432221.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222345249) 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, 82457 + ... + 96144.

It is an arithmetic number, because the mean of its divisors is an integer number (93766050).

Almost surely, 2^1222345244 is an apocalyptic number.

It is an amenable number.

1222345244 is a deficient number, since it is larger than the sum of its proper divisors (1028039956).

1222345244 is a wasteful number, since it uses less digits than its factorization.

1222345244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178693 (or 178691 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 1222345244 is about 34962.0543446749. The cubic root of 1222345244 is about 1069.2139812111.

Adding to 1222345244 its reverse (4425432221), we get a palindrome (5647777465).

The spelling of 1222345244 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, two hundred forty-four".