12012221201012 has 12 divisors (see below), whose sum is σ = 21021423084480. Its totient is φ = 6006100319736.

The previous prime is 12012221201003. The next prime is 12012221201059. The reversal of 12012221201012 is 21010212221021.

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 3 ways as a sum of consecutive naturals, for example, 454163 + ... + 4922469.

It is an arithmetic number, because the mean of its divisors is an integer number (1751785257040).

Almost surely, 2^{12012221201012} is an apocalyptic number.

It is an amenable number.

12012221201012 is a deficient number, since it is larger than the sum of its proper divisors (9009201883468).

12012221201012 is a wasteful number, since it uses less digits than its factorization.

12012221201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140390 (or 5140388 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012221201012 its reverse (21010212221021), we get a palindrome (33022433422033).

The spelling of 12012221201012 in words is "twelve trillion, twelve billion, two hundred twenty-one million, two hundred one thousand, twelve".