20424422224 has 20 divisors (see below), whose sum is σ = 39582841536. Its totient is φ = 10209495392.

The previous prime is 20424422167. The next prime is 20424422237. The reversal of 20424422224 is 42222442402.

It is a junction number, because it is equal to n+sod(n) for n = 20424422192 and 20424422201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106984 + ... + 228679.

Almost surely, 2^20424422224 is an apocalyptic number.

It is an amenable number.

20424422224 is a deficient number, since it is larger than the sum of its proper divisors (19158419312).

20424422224 is a wasteful number, since it uses less digits than its factorization.

20424422224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339474 (or 339468 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20424422224 its reverse (42222442402), we get a palindrome (62646864626).

The spelling of 20424422224 in words is "twenty billion, four hundred twenty-four million, four hundred twenty-two thousand, two hundred twenty-four".