202420422242 has 8 divisors (see below), whose sum is σ = 303716391132. Its totient is φ = 101181625200.

The previous prime is 202420422223. The next prime is 202420422247. The reversal of 202420422242 is 242224024202.

It can be written as a sum of positive squares in 2 ways, for example, as 191564657761 + 10855764481 = 437681^2 + 104191^2 .

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

It is not an unprimeable number, because it can be changed into a prime (202420422247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14284109 + ... + 14298272.

Almost surely, 2^202420422242 is an apocalyptic number.

202420422242 is a deficient number, since it is larger than the sum of its proper divisors (101295968890).

202420422242 is a wasteful number, since it uses less digits than its factorization.

202420422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28585924.

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

Adding to 202420422242 its reverse (242224024202), we get a palindrome (444644446444).

The spelling of 202420422242 in words is "two hundred two billion, four hundred twenty million, four hundred twenty-two thousand, two hundred forty-two".