220011223 has 2 divisors, whose sum is σ = 220011224. Its totient is φ = 220011222.

The previous prime is 220011199. The next prime is 220011251. The reversal of 220011223 is 322110022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220011223 - 2⁵ = 220011191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220011823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110005611 + 110005612.

It is an arithmetic number, because the mean of its divisors is an integer number (110005612).

Almost surely, 2^220011223 is an apocalyptic number.

220011223 is a deficient number, since it is larger than the sum of its proper divisors (1).

220011223 is an equidigital number, since it uses as much as digits as its factorization.

220011223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220011223 is about 14832.7752966193. The cubic root of 220011223 is about 603.6913388275.

Adding to 220011223 its reverse (322110022), we get a palindrome (542121245).

The spelling of 220011223 in words is "two hundred twenty million, eleven thousand, two hundred twenty-three".