120012111121002 has 16 divisors (see below), whose sum is σ = 240594351040992. Its totient is φ = 39909015573840.

The previous prime is 120012111120997. The next prime is 120012111121013. The reversal of 120012111121002 is 200121111210021.

It is a happy number.

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 in 7 ways as a sum of consecutive naturals, for example, 23755363888 + ... + 23755368939.

It is an arithmetic number, because the mean of its divisors is an integer number (15037146940062).

Almost surely, 2^{120012111121002} is an apocalyptic number.

120012111121002 is an abundant number, since it is smaller than the sum of its proper divisors (120582239919990).

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

120012111121002 is a wasteful number, since it uses less digits than its factorization.

120012111121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47510733253.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120012111121002 its reverse (200121111210021), we get a palindrome (320133222331023).

The spelling of 120012111121002 in words is "one hundred twenty trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, two".