42212333242 has 16 divisors (see below), whose sum is σ = 69354950760. Its totient is φ = 19179639808.

The previous prime is 42212333237. The next prime is 42212333249. The reversal of 42212333242 is 24233321224.

It can be written as a sum of positive squares in 4 ways, for example, as 32037778081 + 10174555161 = 178991^2 + 100869^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42212333242.

It is not an unprimeable number, because it can be changed into a prime (42212333249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21404863 + ... + 21406834.

Almost surely, 2^42212333242 is an apocalyptic number.

42212333242 is a deficient number, since it is larger than the sum of its proper divisors (27142617518).

42212333242 is a wasteful number, since it uses less digits than its factorization.

42212333242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42811745.

The product of its digits is 13824, while the sum is 28.

Adding to 42212333242 its reverse (24233321224), we get a palindrome (66445654466).

The spelling of 42212333242 in words is "forty-two billion, two hundred twelve million, three hundred thirty-three thousand, two hundred forty-two".