20424220422 has 16 divisors (see below), whose sum is σ = 40885895232. Its totient is φ = 6801831080.

The previous prime is 20424220387. The next prime is 20424220459. The reversal of 20424220422 is 22402242402.

It is a junction number, because it is equal to n+sod(n) for n = 20424220392 and 20424220401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553508 + ... + 1566599.

It is an arithmetic number, because the mean of its divisors is an integer number (2555368452).

Almost surely, 2^20424220422 is an apocalyptic number.

20424220422 is an abundant number, since it is smaller than the sum of its proper divisors (20461674810).

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

20424220422 is a wasteful number, since it uses less digits than its factorization.

20424220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121203.

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

Adding to 20424220422 its reverse (22402242402), we get a palindrome (42826462824).

The spelling of 20424220422 in words is "twenty billion, four hundred twenty-four million, two hundred twenty thousand, four hundred twenty-two".