121212201220102 has 8 divisors (see below), whose sum is σ = 181924690543200. Its totient is φ = 60570637705704.

The previous prime is 121212201220091. The next prime is 121212201220133. The reversal of 121212201220102 is 201022102212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121212201220102.

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, 17731447902 + ... + 17731454737.

It is an arithmetic number, because the mean of its divisors is an integer number (22740586317900).

Almost surely, 2^{121212201220102} is an apocalyptic number.

121212201220102 is a deficient number, since it is larger than the sum of its proper divisors (60712489323098).

121212201220102 is a wasteful number, since it uses less digits than its factorization.

121212201220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35462904350.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121212201220102 its reverse (201022102212121), we get a palindrome (322234303432223).

The spelling of 121212201220102 in words is "one hundred twenty-one trillion, two hundred twelve billion, two hundred one million, two hundred twenty thousand, one hundred two".