120121242 has 8 divisors (see below), whose sum is σ = 240242496. Its totient is φ = 40040412.

The previous prime is 120121241. The next prime is 120121247. The reversal of 120121242 is 242121021.

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

120121242 is an admirable number.

It is a super-2 number, since 2×120121242² = 28858225559245128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120121241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010098 + ... + 10010109.

It is an arithmetic number, because the mean of its divisors is an integer number (30030312).

Almost surely, 2^120121242 is an apocalyptic number.

120121242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120121242 is a wasteful number, since it uses less digits than its factorization.

120121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020212.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 120121242 is about 10959.9836678710. The cubic root of 120121242 is about 493.4084747771.

Adding to 120121242 its reverse (242121021), we get a palindrome (362242263).

The spelling of 120121242 in words is "one hundred twenty million, one hundred twenty-one thousand, two hundred forty-two".