12120012001212 has 24 divisors (see below), whose sum is σ = 28302139084800. Its totient is φ = 4036845274416.

The previous prime is 12120012001211. The next prime is 12120012001241. The reversal of 12120012001212 is 21210021002121.

It is a junction number, because it is equal to n+sod(n) for n = 12120012001191 and 12120012001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120012001211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394824762 + ... + 394855457.

It is an arithmetic number, because the mean of its divisors is an integer number (1179255795200).

Almost surely, 2^{12120012001212} is an apocalyptic number.

12120012001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120012001212 is an abundant number, since it is smaller than the sum of its proper divisors (16182127083588).

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

12120012001212 is a wasteful number, since it uses less digits than its factorization.

12120012001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789681505 (or 789681503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12120012001212 its reverse (21210021002121), we get a palindrome (33330033003333).

Subtracting 12120012001212 from its reverse (21210021002121), we obtain a palindrome (9090009000909).

The spelling of 12120012001212 in words is "twelve trillion, one hundred twenty billion, twelve million, one thousand, two hundred twelve".