20042212104434 has 16 divisors (see below), whose sum is σ = 34280344686168. Its totient is φ = 8706119284992.

The previous prime is 20042212104433. The next prime is 20042212104437. The reversal of 20042212104434 is 43440121224002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12751148265625 + 7291063838809 = 3570875^2 + 2700197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20042212104397 and 20042212104406.

It is not an unprimeable number, because it can be changed into a prime (20042212104433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22672185197 + ... + 22672186080.

Almost surely, 2^{20042212104434} is an apocalyptic number.

20042212104434 is a deficient number, since it is larger than the sum of its proper divisors (14238132581734).

20042212104434 is a wasteful number, since it uses less digits than its factorization.

20042212104434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45344371309.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 20042212104434 its reverse (43440121224002), we get a palindrome (63482333328436).

The spelling of 20042212104434 in words is "twenty trillion, forty-two billion, two hundred twelve million, one hundred four thousand, four hundred thirty-four".