12121202120102 has 16 divisors (see below), whose sum is σ = 18194124303360. Its totient is φ = 6056494439688.

The previous prime is 12121202120077. The next prime is 12121202120117. The reversal of 12121202120102 is 20102120212121.

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 7 ways as a sum of consecutive naturals, for example, 64118123 + ... + 64306889.

It is an arithmetic number, because the mean of its divisors is an integer number (1137132768960).

Almost surely, 2^{12121202120102} is an apocalyptic number.

12121202120102 is a deficient number, since it is larger than the sum of its proper divisors (6072922183258).

12121202120102 is a wasteful number, since it uses less digits than its factorization.

12121202120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210355.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121202120102 its reverse (20102120212121), we get a palindrome (32223322332223).

The spelling of 12121202120102 in words is "twelve trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty thousand, one hundred two".