121120012012 has 12 divisors (see below), whose sum is σ = 213035961600. Its totient is φ = 60252594416.

The previous prime is 121120012007. The next prime is 121120012019. The reversal of 121120012012 is 210210021121.

It is a junction number, because it is equal to n+sod(n) for n = 121120011983 and 121120012001.

It is not an unprimeable number, because it can be changed into a prime (121120012019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76852012 + ... + 76853587.

It is an arithmetic number, because the mean of its divisors is an integer number (17752996800).

Almost surely, 2^121120012012 is an apocalyptic number.

It is an amenable number.

121120012012 is a deficient number, since it is larger than the sum of its proper divisors (91915949588).

121120012012 is a wasteful number, since it uses less digits than its factorization.

121120012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153705800 (or 153705798 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121120012012 its reverse (210210021121), we get a palindrome (331330033133).

The spelling of 121120012012 in words is "one hundred twenty-one billion, one hundred twenty million, twelve thousand, twelve".