12012012021222 has 12 divisors (see below), whose sum is σ = 26026026046020. Its totient is φ = 4004004007068.

The previous prime is 12012012021137. The next prime is 12012012021329. The reversal of 12012012021222 is 22212021021021.

It is a happy number.

12012012021222 is a `hidden beast` number, since 1 + 201 + 201 + 20 + 21 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 667334001179 = 12012012021222 / (1 + 2 + 0 + 1 + 2 + 0 + 1 + 2 + 0 + 2 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12012012021195 and 12012012021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333667000572 + ... + 333667000607.

It is an arithmetic number, because the mean of its divisors is an integer number (2168835503835).

Almost surely, 2^{12012012021222} is an apocalyptic number.

12012012021222 is an abundant number, since it is smaller than the sum of its proper divisors (14014014024798).

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

12012012021222 is a wasteful number, since it uses less digits than its factorization.

12012012021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667334001187 (or 667334001184 counting only the distinct ones).

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

Adding to 12012012021222 its reverse (22212021021021), we get a palindrome (34224033042243).

The spelling of 12012012021222 in words is "twelve trillion, twelve billion, twelve million, twenty-one thousand, two hundred twenty-two".