220001100220 has 24 divisors (see below), whose sum is σ = 504002521008. Its totient is φ = 80000400000.

The previous prime is 220001100217. The next prime is 220001100259. The reversal of 220001100220 is 22001100022.

220001100220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220001100197 and 220001100206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500002281 + ... + 500002720.

It is an arithmetic number, because the mean of its divisors is an integer number (21000105042).

Almost surely, 2^220001100220 is an apocalyptic number.

220001100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001100220 is an abundant number, since it is smaller than the sum of its proper divisors (284001420788).

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

220001100220 is a wasteful number, since it uses less digits than its factorization.

220001100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000005021 (or 1000005019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 220001100220 its reverse (22001100022), we get a palindrome (242002200242).

The spelling of 220001100220 in words is "two hundred twenty billion, one million, one hundred thousand, two hundred twenty".