22022422220 has 24 divisors (see below), whose sum is σ = 46251114000. Its totient is φ = 8808201792.

The previous prime is 22022422211. The next prime is 22022422267. The reversal of 22022422220 is 2222422022.

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 = 22022422192 and 22022422201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 225506 + ... + 308054.

It is an arithmetic number, because the mean of its divisors is an integer number (1927129750).

Almost surely, 2^22022422220 is an apocalyptic number.

22022422220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022422220 is an abundant number, since it is smaller than the sum of its proper divisors (24228691780).

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

22022422220 is a wasteful number, since it uses less digits than its factorization.

22022422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95897 (or 95895 counting only the distinct ones).

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

Adding to 22022422220 its reverse (2222422022), we get a palindrome (24244844242).

The spelling of 22022422220 in words is "twenty-two billion, twenty-two million, four hundred twenty-two thousand, two hundred twenty".