202422404242 has 4 divisors (see below), whose sum is σ = 303633606366. Its totient is φ = 101211202120.

The previous prime is 202422404221. The next prime is 202422404243. The reversal of 202422404242 is 242404224202.

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., 139831871481 + 62590532761 = 373941^2 + 250181^2 .

It is a super-2 number, since 2×202422404242² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202422404242.

It is not an unprimeable number, because it can be changed into a prime (202422404243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605601059 + ... + 50605601062.

Almost surely, 2^202422404242 is an apocalyptic number.

202422404242 is a deficient number, since it is larger than the sum of its proper divisors (101211202124).

202422404242 is a wasteful number, since it uses less digits than its factorization.

202422404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101211202123.

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

Adding to 202422404242 its reverse (242404224202), we get a palindrome (444826628444).

The spelling of 202422404242 in words is "two hundred two billion, four hundred twenty-two million, four hundred four thousand, two hundred forty-two".