20422420004442 has 8 divisors (see below), whose sum is σ = 40844840008896. Its totient is φ = 6807473334812.

The previous prime is 20422420004347. The next prime is 20422420004471. The reversal of 20422420004442 is 24440002422402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20422420004442 is an admirable 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, 1701868333698 + ... + 1701868333709.

It is an arithmetic number, because the mean of its divisors is an integer number (5105605001112).

Almost surely, 2^{20422420004442} is an apocalyptic number.

20422420004442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20422420004442 is a wasteful number, since it uses less digits than its factorization.

20422420004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403736667412.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 20422420004442 its reverse (24440002422402), we get a palindrome (44862422426844).

The spelling of 20422420004442 in words is "twenty trillion, four hundred twenty-two billion, four hundred twenty million, four thousand, four hundred forty-two".