12101211220211 has 8 divisors (see below), whose sum is σ = 12135997440000. Its totient is φ = 12066467142600.

The previous prime is 12101211220099. The next prime is 12101211220223. The reversal of 12101211220211 is 11202211210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101211220211 - 2¹⁰ = 12101211219187 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 12101211220211.

It is not an unprimeable number, because it can be changed into a prime (12101211220271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9960371 + ... + 11109068.

It is an arithmetic number, because the mean of its divisors is an integer number (1516999680000).

Almost surely, 2^{12101211220211} is an apocalyptic number.

12101211220211 is a deficient number, since it is larger than the sum of its proper divisors (34786219789).

12101211220211 is a wasteful number, since it uses less digits than its factorization.

12101211220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21071089.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12101211220211 its reverse (11202211210121), we get a palindrome (23303422430332).

The spelling of 12101211220211 in words is "twelve trillion, one hundred one billion, two hundred eleven million, two hundred twenty thousand, two hundred eleven".