22000220220 has 48 divisors (see below), whose sum is σ = 67200674688. Its totient is φ = 5333386560.

The previous prime is 22000220197. The next prime is 22000220227. The reversal of 22000220220 is 2202200022.

It is a Harshad number since it is a multiple of its sum of digits (12).

22000220220 is a modest number, since divided by 220220 gives 22000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22000220196 and 22000220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000220227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16666174 + ... + 16667493.

It is an arithmetic number, because the mean of its divisors is an integer number (1400014056).

Almost surely, 2^22000220220 is an apocalyptic number.

22000220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000220220 is an abundant number, since it is smaller than the sum of its proper divisors (45200454468).

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

22000220220 is a wasteful number, since it uses less digits than its factorization.

22000220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333690 (or 33333688 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 22000220220 its reverse (2202200022), we get a palindrome (24202420242).

The spelling of 22000220220 in words is "twenty-two billion, two hundred twenty thousand, two hundred twenty".