11220561222223 has 2 divisors, whose sum is σ = 11220561222224. Its totient is φ = 11220561222222.

The previous prime is 11220561222217. The next prime is 11220561222259. The reversal of 11220561222223 is 32222216502211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220561222223 - 2⁹ = 11220561221711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220561222023) 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 as a sum of consecutive naturals, namely, 5610280611111 + 5610280611112.

It is an arithmetic number, because the mean of its divisors is an integer number (5610280611112).

Almost surely, 2^{11220561222223} is an apocalyptic number.

11220561222223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220561222223 is an equidigital number, since it uses as much as digits as its factorization.

11220561222223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 11220561222223 its reverse (32222216502211), we get a palindrome (43442777724434).

The spelling of 11220561222223 in words is "eleven trillion, two hundred twenty billion, five hundred sixty-one million, two hundred twenty-two thousand, two hundred twenty-three".