220311224 has 32 divisors (see below), whose sum is σ = 472810080. Its totient is φ = 94276224.

The previous prime is 220311197. The next prime is 220311229. The reversal of 220311224 is 422113022.

220311224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39794 + ... + 44990.

It is an arithmetic number, because the mean of its divisors is an integer number (14775315).

Almost surely, 2^220311224 is an apocalyptic number.

It is an amenable number.

220311224 is an abundant number, since it is smaller than the sum of its proper divisors (252498856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220311224 is a wasteful number, since it uses less digits than its factorization.

220311224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967 (or 5963 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220311224 is about 14842.8846253011. The cubic root of 220311224 is about 603.9656062751.

Adding to 220311224 its reverse (422113022), we get a palindrome (642424246).

The spelling of 220311224 in words is "two hundred twenty million, three hundred eleven thousand, two hundred twenty-four".