22424222220 has 96 divisors (see below), whose sum is σ = 65984717568. Its totient is φ = 5682845952.

The previous prime is 22424222167. The next prime is 22424222243. The reversal of 22424222220 is 2222242422.

It is a super-3 number, since 3×22424222220³ (a number of 32 digits) contains 333 as substring.

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, 21994 + ... + 212913.

It is an arithmetic number, because the mean of its divisors is an integer number (687340808).

Almost surely, 2^22424222220 is an apocalyptic number.

22424222220 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 22424222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32992358784).

22424222220 is an abundant number, since it is smaller than the sum of its proper divisors (43560495348).

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

22424222220 is a wasteful number, since it uses less digits than its factorization.

22424222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234999 (or 234997 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22424222220 its reverse (2222242422), we get a palindrome (24646464642).

The spelling of 22424222220 in words is "twenty-two billion, four hundred twenty-four million, two hundred twenty-two thousand, two hundred twenty".