121111200202012 has 12 divisors (see below), whose sum is σ = 219253034848680. Its totient is φ = 58467475959536.

The previous prime is 121111200202001. The next prime is 121111200202051. The reversal of 121111200202012 is 210202002111121.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 522031035238 + ... + 522031035469.

It is an arithmetic number, because the mean of its divisors is an integer number (18271086237390).

Almost surely, 2^{121111200202012} is an apocalyptic number.

It is an amenable number.

121111200202012 is a deficient number, since it is larger than the sum of its proper divisors (98141834646668).

121111200202012 is a wasteful number, since it uses less digits than its factorization.

121111200202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044062070740 (or 1044062070738 counting only the distinct ones).

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

Adding to 121111200202012 its reverse (210202002111121), we get a palindrome (331313202313133).

The spelling of 121111200202012 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred million, two hundred two thousand, twelve".