224123655220 has 24 divisors (see below), whose sum is σ = 470872448424. Its totient is φ = 89608934016.

The previous prime is 224123655143. The next prime is 224123655229. The reversal of 224123655220 is 22556321422.

224123655220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 144792426256 + 79331228964 = 380516^2 + 281658^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224123655229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2487639 + ... + 2576158.

It is an arithmetic number, because the mean of its divisors is an integer number (19619685351).

Almost surely, 2^224123655220 is an apocalyptic number.

224123655220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224123655220 is an abundant number, since it is smaller than the sum of its proper divisors (246748793204).

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

224123655220 is a wasteful number, since it uses less digits than its factorization.

224123655220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066019 (or 5066017 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 224123655220 its reverse (22556321422), we get a palindrome (246679976642).

The spelling of 224123655220 in words is "two hundred twenty-four billion, one hundred twenty-three million, six hundred fifty-five thousand, two hundred twenty".