12012121021122 has 48 divisors (see below), whose sum is σ = 26632878262848. Its totient is φ = 3910724264160.

The previous prime is 12012121021081. The next prime is 12012121021237. The reversal of 12012121021122 is 22112012121021.

12012121021122 is a `hidden beast` number, since 1 + 201 + 21 + 210 + 211 + 22 = 666.

12012121021122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 12012121021095 and 12012121021104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15237172 + ... + 16006112.

It is an arithmetic number, because the mean of its divisors is an integer number (554851630476).

Almost surely, 2^{12012121021122} is an apocalyptic number.

12012121021122 is an abundant number, since it is smaller than the sum of its proper divisors (14620757241726).

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

12012121021122 is a wasteful number, since it uses less digits than its factorization.

12012121021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789175 (or 789172 counting only the distinct ones).

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

Adding to 12012121021122 its reverse (22112012121021), we get a palindrome (34124133142143).

The spelling of 12012121021122 in words is "twelve trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".