1222320224 has 12 divisors (see below), whose sum is σ = 2406443004. Its totient is φ = 611160096.

The previous prime is 1222320221. The next prime is 1222320227. The reversal of 1222320224 is 4220232221.

It is an interprime number because it is at equal distance from previous prime (1222320221) and next prime (1222320227).

It is a junction number, because it is equal to n+sod(n) for n = 1222320196 and 1222320205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222320221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19098722 + ... + 19098785.

It is an arithmetic number, because the mean of its divisors is an integer number (200536917).

Almost surely, 2^1222320224 is an apocalyptic number.

It is an amenable number.

1222320224 is a deficient number, since it is larger than the sum of its proper divisors (1184122780).

1222320224 is an equidigital number, since it uses as much as digits as its factorization.

1222320224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38197517 (or 38197509 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1222320224 is about 34961.6965263415. The cubic root of 1222320224 is about 1069.2066859682.

Adding to 1222320224 its reverse (4220232221), we get a palindrome (5442552445).

The spelling of 1222320224 in words is "one billion, two hundred twenty-two million, three hundred twenty thousand, two hundred twenty-four".