12121020222102 has 48 divisors (see below), whose sum is σ = 28653707377152. Its totient is φ = 3672520634160.

The previous prime is 12121020222089. The next prime is 12121020222127. The reversal of 12121020222102 is 20122202012121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2883598 + ... + 5705889.

It is an arithmetic number, because the mean of its divisors is an integer number (596952237024).

Almost surely, 2^{12121020222102} is an apocalyptic number.

12121020222102 is an abundant number, since it is smaller than the sum of its proper divisors (16532687155050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121020222102 is a wasteful number, since it uses less digits than its factorization.

12121020222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596633 (or 8596630 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12121020222102 its reverse (20122202012121), we get a palindrome (32243222234223).

The spelling of 12121020222102 in words is "twelve trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, one hundred two".