1220344223 has 8 divisors (see below), whose sum is σ = 1417543200. Its totient is φ = 1028861280.

The previous prime is 1220344207. The next prime is 1220344241. The reversal of 1220344223 is 3224430221.

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 1220344223 - 2⁴ = 1220344207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220344243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428548 + ... + 1429401.

It is an arithmetic number, because the mean of its divisors is an integer number (177192900).

Almost surely, 2^1220344223 is an apocalyptic number.

1220344223 is a deficient number, since it is larger than the sum of its proper divisors (197198977).

1220344223 is an equidigital number, since it uses as much as digits as its factorization.

1220344223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858017.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1220344223 is about 34933.4255835296. The cubic root of 1220344223 is about 1068.6302159199.

Adding to 1220344223 its reverse (3224430221), we get a palindrome (4444774444).

The spelling of 1220344223 in words is "one billion, two hundred twenty million, three hundred forty-four thousand, two hundred twenty-three".