18120212002012 has 12 divisors (see below), whose sum is σ = 31712191781760. Its totient is φ = 9059585778656.

The previous prime is 18120212001977. The next prime is 18120212002019. The reversal of 18120212002012 is 21020021202181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18120212002019) by changing a digit.

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, 129977212 + ... + 130116547.

It is an arithmetic number, because the mean of its divisors is an integer number (2642682648480).

Almost surely, 2^{18120212002012} is an apocalyptic number.

It is an amenable number.

18120212002012 is a deficient number, since it is larger than the sum of its proper divisors (13591979779748).

18120212002012 is a wasteful number, since it uses less digits than its factorization.

18120212002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260111180 (or 260111178 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 18120212002012 its reverse (21020021202181), we get a palindrome (39140233204193).

The spelling of 18120212002012 in words is "eighteen trillion, one hundred twenty billion, two hundred twelve million, two thousand, twelve".