20042204042224 has 40 divisors (see below), whose sum is σ = 47792948104160. Its totient is φ = 7928784016128.

The previous prime is 20042204042153. The next prime is 20042204042239. The reversal of 20042204042224 is 42224040224002.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20042204042192 and 20042204042201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6882623559 + ... + 6882626470.

It is an arithmetic number, because the mean of its divisors is an integer number (1194823702604).

Almost surely, 2^{20042204042224} is an apocalyptic number.

It is an amenable number.

20042204042224 is an abundant number, since it is smaller than the sum of its proper divisors (27750744061936).

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

20042204042224 is a wasteful number, since it uses less digits than its factorization.

20042204042224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765250057 (or 13765250051 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20042204042224 its reverse (42224040224002), we get a palindrome (62266244266226).

The spelling of 20042204042224 in words is "twenty trillion, forty-two billion, two hundred four million, forty-two thousand, two hundred twenty-four".