20042200404321 has 8 divisors (see below), whose sum is σ = 28129404076320. Its totient is φ = 12658231834272.

The previous prime is 20042200404313. The next prime is 20042200404353. The reversal of 20042200404321 is 12340400224002.

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

It is not a de Polignac number, because 20042200404321 - 2³ = 20042200404313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20042200404291 and 20042200404300.

It is not an unprimeable number, because it can be changed into a prime (20042200406321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175808775420 + ... + 175808775533.

It is an arithmetic number, because the mean of its divisors is an integer number (3516175509540).

Almost surely, 2^{20042200404321} is an apocalyptic number.

It is an amenable number.

20042200404321 is a deficient number, since it is larger than the sum of its proper divisors (8087203671999).

20042200404321 is a wasteful number, since it uses less digits than its factorization.

20042200404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351617550975.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20042200404321 its reverse (12340400224002), we get a palindrome (32382600628323).

The spelling of 20042200404321 in words is "twenty trillion, forty-two billion, two hundred million, four hundred four thousand, three hundred twenty-one".