4431231222220 has 24 divisors (see below), whose sum is σ = 10151547891408. Its totient is φ = 1611356808000.

The previous prime is 4431231222203. The next prime is 4431231222287. The reversal of 4431231222220 is 222221321344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10070979831 + ... + 10070980270.

It is an arithmetic number, because the mean of its divisors is an integer number (422981162142).

Almost surely, 2^{4431231222220} is an apocalyptic number.

It is an amenable number.

4431231222220 is an abundant number, since it is smaller than the sum of its proper divisors (5720316669188).

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

4431231222220 is a wasteful number, since it uses less digits than its factorization.

4431231222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20141960121 (or 20141960119 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 4431231222220 its reverse (222221321344), we get a palindrome (4653452543564).

The spelling of 4431231222220 in words is "four trillion, four hundred thirty-one billion, two hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty".