120121212122 has 4 divisors (see below), whose sum is σ = 180181818186. Its totient is φ = 60060606060.

The previous prime is 120121212119. The next prime is 120121212151. The reversal of 120121212122 is 221212121021.

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., 70209630841 + 49911581281 = 264971^2 + 223409^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120121212122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30030303029 + ... + 30030303032.

Almost surely, 2^120121212122 is an apocalyptic number.

120121212122 is a deficient number, since it is larger than the sum of its proper divisors (60060606064).

120121212122 is an equidigital number, since it uses as much as digits as its factorization.

120121212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60060606063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120121212122 its reverse (221212121021), we get a palindrome (341333333143).

The spelling of 120121212122 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-two".