20224420240042 has 8 divisors (see below), whose sum is σ = 32121138028356. Its totient is φ = 9517374230592.

The previous prime is 20224420240039. The next prime is 20224420240133. The reversal of 20224420240042 is 24004202442202.

It can be written as a sum of positive squares in 2 ways, for example, as 20031093823321 + 193326416721 = 4475611^2 + 439689^2 .

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

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, 297417944673 + ... + 297417944740.

Almost surely, 2^{20224420240042} is an apocalyptic number.

20224420240042 is a deficient number, since it is larger than the sum of its proper divisors (11896717788314).

20224420240042 is a wasteful number, since it uses less digits than its factorization.

20224420240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594835889432.

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

Adding to 20224420240042 its reverse (24004202442202), we get a palindrome (44228622682244).

The spelling of 20224420240042 in words is "twenty trillion, two hundred twenty-four billion, four hundred twenty million, two hundred forty thousand, forty-two".