120012121221011 has 16 divisors (see below), whose sum is σ = 125735455609344. Its totient is φ = 114331033749504.

The previous prime is 120012121221001. The next prime is 120012121221019. The reversal of 120012121221011 is 110122121210021.

It is not a de Polignac number, because 120012121221011 - 2⁴² = 115614074709907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120012121221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39602426 + ... + 42525008.

It is an arithmetic number, because the mean of its divisors is an integer number (7858465975584).

Almost surely, 2^{120012121221011} is an apocalyptic number.

120012121221011 is a deficient number, since it is larger than the sum of its proper divisors (5723334388333).

120012121221011 is a wasteful number, since it uses less digits than its factorization.

120012121221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929810.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120012121221011 its reverse (110122121210021), we get a palindrome (230134242431032).

The spelling of 120012121221011 in words is "one hundred twenty trillion, twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, eleven".