220004422220 has 96 divisors (see below), whose sum is σ = 507255642432. Its totient is φ = 79488000000.

The previous prime is 220004422207. The next prime is 220004422243. The reversal of 220004422220 is 22224400022.

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 = 220004422192 and 220004422201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24437720 + ... + 24446720.

It is an arithmetic number, because the mean of its divisors is an integer number (5283912942).

Almost surely, 2^220004422220 is an apocalyptic number.

220004422220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220004422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253627821216).

220004422220 is an abundant number, since it is smaller than the sum of its proper divisors (287251220212).

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

220004422220 is a wasteful number, since it uses less digits than its factorization.

220004422220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9723 (or 9721 counting only the distinct ones).

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

Adding to 220004422220 its reverse (22224400022), we get a palindrome (242228822242).

The spelling of 220004422220 in words is "two hundred twenty billion, four million, four hundred twenty-two thousand, two hundred twenty".