220420442444 has 12 divisors (see below), whose sum is σ = 385740151944. Its totient is φ = 110208970464.

The previous prime is 220420442413. The next prime is 220420442453. The reversal of 220420442444 is 444244024022.

It is a self number, because there is not a number n which added to its sum of digits gives 220420442444.

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, 164864 + ... + 684120.

It is an arithmetic number, because the mean of its divisors is an integer number (32145012662).

Almost surely, 2^220420442444 is an apocalyptic number.

It is an amenable number.

220420442444 is a deficient number, since it is larger than the sum of its proper divisors (165319709500).

220420442444 is a wasteful number, since it uses less digits than its factorization.

220420442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625384 (or 625382 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 220420442444 its reverse (444244024022), we get a palindrome (664664466466).

The spelling of 220420442444 in words is "two hundred twenty billion, four hundred twenty million, four hundred forty-two thousand, four hundred forty-four".