122511203242 has 16 divisors (see below), whose sum is σ = 191785942080. Its totient is φ = 58583369152.

The previous prime is 122511203203. The next prime is 122511203317. The reversal of 122511203242 is 242302115221.

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 in 7 ways as a sum of consecutive naturals, for example, 106338 + ... + 506290.

It is an arithmetic number, because the mean of its divisors is an integer number (11986621380).

Almost surely, 2^122511203242 is an apocalyptic number.

122511203242 is a deficient number, since it is larger than the sum of its proper divisors (69274738838).

122511203242 is a wasteful number, since it uses less digits than its factorization.

122511203242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406637.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 122511203242 its reverse (242302115221), we get a palindrome (364813318463).

The spelling of 122511203242 in words is "one hundred twenty-two billion, five hundred eleven million, two hundred three thousand, two hundred forty-two".