1321224223 has 8 divisors (see below), whose sum is σ = 1517195520. Its totient is φ = 1137896280.

The previous prime is 1321224199. The next prime is 1321224269. The reversal of 1321224223 is 3224221231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321224223 - 2²⁵ = 1287669791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321224194 and 1321224203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321224623) 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, 3160615 + ... + 3161032.

It is an arithmetic number, because the mean of its divisors is an integer number (189649440).

Almost surely, 2^1321224223 is an apocalyptic number.

1321224223 is a deficient number, since it is larger than the sum of its proper divisors (195971297).

1321224223 is a wasteful number, since it uses less digits than its factorization.

1321224223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321677.

The product of its digits is 1152, while the sum is 22.

The square root of 1321224223 is about 36348.6481591819. The cubic root of 1321224223 is about 1097.3003282437.

Adding to 1321224223 its reverse (3224221231), we get a palindrome (4545445454).

The spelling of 1321224223 in words is "one billion, three hundred twenty-one million, two hundred twenty-four thousand, two hundred twenty-three".