224422220 has 24 divisors (see below), whose sum is σ = 514131408. Its totient is φ = 81608000.

The previous prime is 224422217. The next prime is 224422223. The reversal of 224422220 is 22224422.

It is an interprime number because it is at equal distance from previous prime (224422217) and next prime (224422223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 224422192 and 224422201.

It is not an unprimeable number, because it can be changed into a prime (224422223) 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, 509831 + ... + 510270.

It is an arithmetic number, because the mean of its divisors is an integer number (21422142).

Almost surely, 2^224422220 is an apocalyptic number.

224422220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224422220 is an abundant number, since it is smaller than the sum of its proper divisors (289709188).

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

224422220 is a wasteful number, since it uses less digits than its factorization.

224422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020121 (or 1020119 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 224422220 is about 14980.7282867022. The cubic root of 224422220 is about 607.6991348170.

Adding to 224422220 its reverse (22224422), we get a palindrome (246646642).

The spelling of 224422220 in words is "two hundred twenty-four million, four hundred twenty-two thousand, two hundred twenty".