1220000223223 has 4 divisors (see below), whose sum is σ = 1222898086408. Its totient is φ = 1217102360040.

The previous prime is 1220000223209. The next prime is 1220000223257. The reversal of 1220000223223 is 3223220000221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220000223223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220000223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220000223203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448930961 + ... + 1448931802.

It is an arithmetic number, because the mean of its divisors is an integer number (305724521602).

Almost surely, 2^{1220000223223} is an apocalyptic number.

1220000223223 is a deficient number, since it is larger than the sum of its proper divisors (2897863185).

1220000223223 is an equidigital number, since it uses as much as digits as its factorization.

1220000223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897863184.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 1220000223223 its reverse (3223220000221), we get a palindrome (4443220223444).

The spelling of 1220000223223 in words is "one trillion, two hundred twenty billion, two hundred twenty-three thousand, two hundred twenty-three".