121211202010012 has 12 divisors (see below), whose sum is σ = 217293252384096. Its totient is φ = 59127415614560.

The previous prime is 121211202010009. The next prime is 121211202010037. The reversal of 121211202010012 is 210010202112121.

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 3 ways as a sum of consecutive naturals, for example, 369546347428 + ... + 369546347755.

It is an arithmetic number, because the mean of its divisors is an integer number (18107771032008).

Almost surely, 2^{121211202010012} is an apocalyptic number.

It is an amenable number.

121211202010012 is a deficient number, since it is larger than the sum of its proper divisors (96082050374084).

121211202010012 is a wasteful number, since it uses less digits than its factorization.

121211202010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739092695228 (or 739092695226 counting only the distinct ones).

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

Adding to 121211202010012 its reverse (210010202112121), we get a palindrome (331221404122133).

The spelling of 121211202010012 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred two million, ten thousand, twelve".