12012121122102 has 24 divisors (see below), whose sum is σ = 26099991233784. Its totient is φ = 3992697481344.

The previous prime is 12012121122077. The next prime is 12012121122151. The reversal of 12012121122102 is 20122112121021.

12012121122102 is a `hidden beast` number, since 120 + 121 + 211 + 2 + 210 + 2 = 666.

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 (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 945234528 + ... + 945247235.

It is an arithmetic number, because the mean of its divisors is an integer number (1087499634741).

Almost surely, 2^{12012121122102} is an apocalyptic number.

12012121122102 is an abundant number, since it is smaller than the sum of its proper divisors (14087870111682).

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

12012121122102 is a wasteful number, since it uses less digits than its factorization.

12012121122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890482124 (or 1890482121 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12012121122102 its reverse (20122112121021), we get a palindrome (32134233243123).

The spelling of 12012121122102 in words is "twelve trillion, twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred two".