42112200122 has 4 divisors (see below), whose sum is σ = 63168300186. Its totient is φ = 21056100060.

The previous prime is 42112200107. The next prime is 42112200133. The reversal of 42112200122 is 22100221124.

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., 32872953481 + 9239246641 = 181309^2 + 96121^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42112200122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10528050029 + ... + 10528050032.

Almost surely, 2^42112200122 is an apocalyptic number.

42112200122 is a deficient number, since it is larger than the sum of its proper divisors (21056100064).

42112200122 is a wasteful number, since it uses less digits than its factorization.

42112200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21056100063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 42112200122 its reverse (22100221124), we get a palindrome (64212421246).

The spelling of 42112200122 in words is "forty-two billion, one hundred twelve million, two hundred thousand, one hundred twenty-two".