12120012202212 has 36 divisors (see below), whose sum is σ = 30711603899340. Its totient is φ = 4030126301952.

The previous prime is 12120012202201. The next prime is 12120012202213. The reversal of 12120012202212 is 21220221002121.

It is a happy number.

12120012202212 is a `hidden beast` number, since 1 + 21 + 200 + 1 + 220 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9492967696356 + 2627044505856 = 3081066^2 + 1620816^2 .

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 not an unprimeable number, because it can be changed into a prime (12120012202213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411558633 + ... + 411588080.

It is an arithmetic number, because the mean of its divisors is an integer number (853100108315).

Almost surely, 2^{12120012202212} is an apocalyptic number.

12120012202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120012202212 is an abundant number, since it is smaller than the sum of its proper divisors (18591591697128).

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

12120012202212 is a wasteful number, since it uses less digits than its factorization.

12120012202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823147132 (or 823147127 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12120012202212 its reverse (21220221002121), we get a palindrome (33340233204333).

The spelling of 12120012202212 in words is "twelve trillion, one hundred twenty billion, twelve million, two hundred two thousand, two hundred twelve".