12111212200222 has 4 divisors (see below), whose sum is σ = 18166818300336. Its totient is φ = 6055606100110.

The previous prime is 12111212200211. The next prime is 12111212200223. The reversal of 12111212200222 is 22200221211121.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12111212200222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111212200223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027803050054 + ... + 3027803050057.

It is an arithmetic number, because the mean of its divisors is an integer number (4541704575084).

Almost surely, 2^{12111212200222} is an apocalyptic number.

12111212200222 is a deficient number, since it is larger than the sum of its proper divisors (6055606100114).

12111212200222 is an equidigital number, since it uses as much as digits as its factorization.

12111212200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055606100113.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12111212200222 its reverse (22200221211121), we get a palindrome (34311433411343).

The spelling of 12111212200222 in words is "twelve trillion, one hundred eleven billion, two hundred twelve million, two hundred thousand, two hundred twenty-two".