12212001220211 has 16 divisors (see below), whose sum is σ = 13685320830720. Its totient is φ = 10823844598560.

The previous prime is 12212001220207. The next prime is 12212001220241. The reversal of 12212001220211 is 11202210021221.

It is a cyclic number.

It is not a de Polignac number, because 12212001220211 - 2² = 12212001220207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212001220211.

It is not an unprimeable number, because it can be changed into a prime (12212001220241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185103935 + ... + 185169896.

It is an arithmetic number, because the mean of its divisors is an integer number (855332551920).

Almost surely, 2^{12212001220211} is an apocalyptic number.

12212001220211 is a deficient number, since it is larger than the sum of its proper divisors (1473319610509).

12212001220211 is a wasteful number, since it uses less digits than its factorization.

12212001220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370273946.

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

Adding to 12212001220211 its reverse (11202210021221), we get a palindrome (23414211241432).

The spelling of 12212001220211 in words is "twelve trillion, two hundred twelve billion, one million, two hundred twenty thousand, two hundred eleven".