12111200202212 has 6 divisors (see below), whose sum is σ = 21194600353878. Its totient is φ = 6055600101104.

The previous prime is 12111200202209. The next prime is 12111200202217. The reversal of 12111200202212 is 21220200211121.

It can be written as a sum of positive squares in only one way, i.e., 8090918558116 + 4020281644096 = 2844454^2 + 2005064^2 .

It is not an unprimeable number, because it can be changed into a prime (12111200202217) 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 as a sum of consecutive naturals, namely, 1513900025273 + ... + 1513900025280.

It is an arithmetic number, because the mean of its divisors is an integer number (3532433392313).

Almost surely, 2^{12111200202212} is an apocalyptic number.

It is an amenable number.

12111200202212 is a deficient number, since it is larger than the sum of its proper divisors (9083400151666).

12111200202212 is a wasteful number, since it uses less digits than its factorization.

12111200202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027800050557 (or 3027800050555 counting only the distinct ones).

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

Adding to 12111200202212 its reverse (21220200211121), we get a palindrome (33331400413333).

The spelling of 12111200202212 in words is "twelve trillion, one hundred eleven billion, two hundred million, two hundred two thousand, two hundred twelve".