121221010210012 has 96 divisors (see below), whose sum is σ = 234380055168000. Its totient is φ = 54630541486080.

The previous prime is 121221010209997. The next prime is 121221010210073. The reversal of 121221010210012 is 210012010122121.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 295393233 + ... + 295803319.

It is an arithmetic number, because the mean of its divisors is an integer number (2441458908000).

Almost surely, 2^{121221010210012} is an apocalyptic number.

It is an amenable number.

121221010210012 is a deficient number, since it is larger than the sum of its proper divisors (113159044957988).

121221010210012 is a wasteful number, since it uses less digits than its factorization.

121221010210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412099 (or 412097 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121221010210012 its reverse (210012010122121), we get a palindrome (331233020332133).

The spelling of 121221010210012 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, ten million, two hundred ten thousand, twelve".