12111101212211 has 8 divisors (see below), whose sum is σ = 12113322885600. Its totient is φ = 12108879734400.

The previous prime is 12111101212207. The next prime is 12111101212351. The reversal of 12111101212211 is 11221210111121.

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 12111101212211 - 2² = 12111101212207 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 12111101212211.

It is not an unprimeable number, because it can be changed into a prime (12111101212201) 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 in 7 ways as a sum of consecutive naturals, for example, 179233250 + ... + 179300808.

It is an arithmetic number, because the mean of its divisors is an integer number (1514165360700).

Almost surely, 2^{12111101212211} is an apocalyptic number.

12111101212211 is a deficient number, since it is larger than the sum of its proper divisors (2221673389).

12111101212211 is an equidigital number, since it uses as much as digits as its factorization.

12111101212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97789.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12111101212211 its reverse (11221210111121), we get a palindrome (23332311323332).

The spelling of 12111101212211 in words is "twelve trillion, one hundred eleven billion, one hundred one million, two hundred twelve thousand, two hundred eleven".