12121212110102 has 4 divisors (see below), whose sum is σ = 18181818165156. Its totient is φ = 6060606055050.

The previous prime is 12121212110099. The next prime is 12121212110129. The reversal of 12121212110102 is 20101121212121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030303027524 + ... + 3030303027527.

It is an arithmetic number, because the mean of its divisors is an integer number (4545454541289).

Almost surely, 2^{12121212110102} is an apocalyptic number.

12121212110102 is a deficient number, since it is larger than the sum of its proper divisors (6060606055054).

12121212110102 is an equidigital number, since it uses as much as digits as its factorization.

12121212110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060606055053.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12121212110102 its reverse (20101121212121), we get a palindrome (32222333322223).

The spelling of 12121212110102 in words is "twelve trillion, one hundred twenty-one billion, two hundred twelve million, one hundred ten thousand, one hundred two".