20424020022 has 64 divisors (see below), whose sum is σ = 52142284800. Its totient is φ = 5804861760.

The previous prime is 20424019949. The next prime is 20424020041. The reversal of 20424020022 is 22002042402.

20424020022 is a `hidden beast` number, since 20 + 424 + 0 + 200 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20424019977 and 20424020004.

It is a congruent number.

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, 69247 + ... + 213642.

It is an arithmetic number, because the mean of its divisors is an integer number (814723200).

Almost surely, 2^20424020022 is an apocalyptic number.

20424020022 is an abundant number, since it is smaller than the sum of its proper divisors (31718264778).

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

20424020022 is a wasteful number, since it uses less digits than its factorization.

20424020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283098 (or 283092 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20424020022 its reverse (22002042402), we get a palindrome (42426062424).

The spelling of 20424020022 in words is "twenty billion, four hundred twenty-four million, twenty thousand, twenty-two".