213042422242 has 8 divisors (see below), whose sum is σ = 344145451356. Its totient is φ = 98327271792.

The previous prime is 213042422239. The next prime is 213042422251. The reversal of 213042422242 is 242224240312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209360238481 + 3682183761 = 457559^2 + 60681^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 213042422242.

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 in 3 ways as a sum of consecutive naturals, for example, 4096969633 + ... + 4096969684.

Almost surely, 2^213042422242 is an apocalyptic number.

213042422242 is a deficient number, since it is larger than the sum of its proper divisors (131103029114).

213042422242 is a wasteful number, since it uses less digits than its factorization.

213042422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193939332.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 213042422242 its reverse (242224240312), we get a palindrome (455266662554).

The spelling of 213042422242 in words is "two hundred thirteen billion, forty-two million, four hundred twenty-two thousand, two hundred forty-two".