12012012221122 has 4 divisors (see below), whose sum is σ = 18018018331686. Its totient is φ = 6006006110560.

The previous prime is 12012012221117. The next prime is 12012012221129. The reversal of 12012012221122 is 22112221021021.

12012012221122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 8481555360721 + 3530456860401 = 2912311^2 + 1878951^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12012012221122.

It is not an unprimeable number, because it can be changed into a prime (12012012221129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003003055279 + ... + 3003003055282.

Almost surely, 2^{12012012221122} is an apocalyptic number.

12012012221122 is a deficient number, since it is larger than the sum of its proper divisors (6006006110564).

12012012221122 is an equidigital number, since it uses as much as digits as its factorization.

12012012221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006006110563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12012012221122 its reverse (22112221021021), we get a palindrome (34124233242143).

The spelling of 12012012221122 in words is "twelve trillion, twelve billion, twelve million, two hundred twenty-one thousand, one hundred twenty-two".