20022400422242 has 4 divisors (see below), whose sum is σ = 30033600633366. Its totient is φ = 10011200211120.

The previous prime is 20022400422163. The next prime is 20022400422257. The reversal of 20022400422242 is 24222400422002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20020067435641 + 2332986601 = 4474379^2 + 48301^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005600105559 + ... + 5005600105562.

Almost surely, 2^{20022400422242} is an apocalyptic number.

20022400422242 is a deficient number, since it is larger than the sum of its proper divisors (10011200211124).

20022400422242 is a wasteful number, since it uses less digits than its factorization.

20022400422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011200211123.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20022400422242 its reverse (24222400422002), we get a palindrome (44244800844244).

The spelling of 20022400422242 in words is "twenty trillion, twenty-two billion, four hundred million, four hundred twenty-two thousand, two hundred forty-two".