120042242 has 4 divisors (see below), whose sum is σ = 180063366. Its totient is φ = 60021120.

The previous prime is 120042211. The next prime is 120042257. The reversal of 120042242 is 242240021.

It is a happy number.

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., 114083761 + 5958481 = 10681^2 + 2441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120042242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30010559 + ... + 30010562.

Almost surely, 2^120042242 is an apocalyptic number.

120042242 is a deficient number, since it is larger than the sum of its proper divisors (60021124).

120042242 is an equidigital number, since it uses as much as digits as its factorization.

120042242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60021123.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 120042242 is about 10956.3790551441. The cubic root of 120042242 is about 493.3002845932.

Adding to 120042242 its reverse (242240021), we get a palindrome (362282263).

The spelling of 120042242 in words is "one hundred twenty million, forty-two thousand, two hundred forty-two".