22220442220 has 12 divisors (see below), whose sum is σ = 46662928704. Its totient is φ = 8888176880.

The previous prime is 22220442217. The next prime is 22220442227. The reversal of 22220442220 is 2224402222.

It is a junction number, because it is equal to n+sod(n) for n = 22220442191 and 22220442200.

It is not an unprimeable number, because it can be changed into a prime (22220442227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555511036 + ... + 555511075.

It is an arithmetic number, because the mean of its divisors is an integer number (3888577392).

Almost surely, 2^22220442220 is an apocalyptic number.

22220442220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220442220 is an abundant number, since it is smaller than the sum of its proper divisors (24442486484).

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

22220442220 is a wasteful number, since it uses less digits than its factorization.

22220442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111022120 (or 1111022118 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22220442220 its reverse (2224402222), we get a palindrome (24444844442).

The spelling of 22220442220 in words is "twenty-two billion, two hundred twenty million, four hundred forty-two thousand, two hundred twenty".