12012112120212 has 36 divisors (see below), whose sum is σ = 30418463507796. Its totient is φ = 3996848789760.

The previous prime is 12012112120199. The next prime is 12012112120237. The reversal of 12012112120212 is 21202121121021.

12012112120212 is a `hidden beast` number, since 1 + 201 + 211 + 21 + 20 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6970677161616 + 5041434958596 = 2640204^2 + 2245314^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299503989 + ... + 299544092.

It is an arithmetic number, because the mean of its divisors is an integer number (844957319661).

Almost surely, 2^{12012112120212} is an apocalyptic number.

12012112120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012112120212 is an abundant number, since it is smaller than the sum of its proper divisors (18406351387584).

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

12012112120212 is a wasteful number, since it uses less digits than its factorization.

12012112120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599048648 (or 599048643 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12012112120212 its reverse (21202121121021), we get a palindrome (33214233241233).

The spelling of 12012112120212 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred twenty thousand, two hundred twelve".