4431222220 has 12 divisors (see below), whose sum is σ = 9305566704. Its totient is φ = 1772488880.

The previous prime is 4431222217. The next prime is 4431222241. The reversal of 4431222220 is 222221344.

It is a junction number, because it is equal to n+sod(n) for n = 4431222191 and 4431222200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110780536 + ... + 110780575.

It is an arithmetic number, because the mean of its divisors is an integer number (775463892).

Almost surely, 2^4431222220 is an apocalyptic number.

It is an amenable number.

4431222220 is an abundant number, since it is smaller than the sum of its proper divisors (4874344484).

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

4431222220 is a wasteful number, since it uses less digits than its factorization.

4431222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221561120 (or 221561118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4431222220 is about 66567.4261181849. The cubic root of 4431222220 is about 1642.5093228769.

Adding to 4431222220 its reverse (222221344), we get a palindrome (4653443564).

The spelling of 4431222220 in words is "four billion, four hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty".