1220223223243 has 4 divisors (see below), whose sum is σ = 1220567242360. Its totient is φ = 1219879204128.

The previous prime is 1220223223231. The next prime is 1220223223249. The reversal of 1220223223243 is 3423223220221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220223223243 - 2³⁷ = 1082784269771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220223223249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172004238 + ... + 172011331.

It is an arithmetic number, because the mean of its divisors is an integer number (305141810590).

Almost surely, 2^{1220223223243} is an apocalyptic number.

1220223223243 is a deficient number, since it is larger than the sum of its proper divisors (344019117).

1220223223243 is an equidigital number, since it uses as much as digits as its factorization.

1220223223243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344019116.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 1220223223243 its reverse (3423223220221), we get a palindrome (4643446443464).

The spelling of 1220223223243 in words is "one trillion, two hundred twenty billion, two hundred twenty-three million, two hundred twenty-three thousand, two hundred forty-three".