20422042244442 has 24 divisors (see below), whose sum is σ = 44337875849280. Its totient is φ = 6793483160520.

The previous prime is 20422042244423. The next prime is 20422042244467. The reversal of 20422042244442 is 24444224022402.

20422042244442 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 204 + 2 + 2 + 4 + 4 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20422042244397 and 20422042244406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1155345442 + ... + 1155363117.

It is an arithmetic number, because the mean of its divisors is an integer number (1847411493720).

Almost surely, 2^{20422042244442} is an apocalyptic number.

20422042244442 is an abundant number, since it is smaller than the sum of its proper divisors (23915833604838).

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

20422042244442 is a wasteful number, since it uses less digits than its factorization.

20422042244442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310709058 (or 2310709055 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 20422042244442 its reverse (24444224022402), we get a palindrome (44866266266844).

The spelling of 20422042244442 in words is "twenty trillion, four hundred twenty-two billion, forty-two million, two hundred forty-four thousand, four hundred forty-two".