12012011002222 has 72 divisors (see below), whose sum is σ = 23499846179208. Its totient is φ = 4553517124800.

The previous prime is 12012011002153. The next prime is 12012011002261. The reversal of 12012011002222 is 22220011021021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012011002196 and 12012011002205.

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 35 ways as a sum of consecutive naturals, for example, 2593929 + ... + 5545492.

It is an arithmetic number, because the mean of its divisors is an integer number (326386752489).

Almost surely, 2^{12012011002222} is an apocalyptic number.

12012011002222 is a deficient number, since it is larger than the sum of its proper divisors (11487835176986).

12012011002222 is a wasteful number, since it uses less digits than its factorization.

12012011002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8139522 (or 8139478 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12012011002222 its reverse (22220011021021), we get a palindrome (34232022023243).

The spelling of 12012011002222 in words is "twelve trillion, twelve billion, eleven million, two thousand, two hundred twenty-two".