220311223 has 8 divisors (see below), whose sum is σ = 243041040. Its totient is φ = 198031680.

The previous prime is 220311197. The next prime is 220311229. The reversal of 220311223 is 322113022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220311223 - 2²¹ = 218214071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220311197 and 220311206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220311229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111540 + ... + 113497.

It is an arithmetic number, because the mean of its divisors is an integer number (30380130).

Almost surely, 2^220311223 is an apocalyptic number.

220311223 is a deficient number, since it is larger than the sum of its proper divisors (22729817).

220311223 is a wasteful number, since it uses less digits than its factorization.

220311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225137.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 220311223 is about 14842.8845916149. The cubic root of 220311223 is about 603.9656053613.

Adding to 220311223 its reverse (322113022), we get a palindrome (542424245).

The spelling of 220311223 in words is "two hundred twenty million, three hundred eleven thousand, two hundred twenty-three".