12121110010211 has 4 divisors (see below), whose sum is σ = 12125876473632. Its totient is φ = 12116343546792.

The previous prime is 12121110010187. The next prime is 12121110010237. The reversal of 12121110010211 is 11201001112121.

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

It is a cyclic number.

It is not a de Polignac number, because 12121110010211 - 2³⁰ = 12120036268387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121110010241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2383227896 + ... + 2383232981.

It is an arithmetic number, because the mean of its divisors is an integer number (3031469118408).

Almost surely, 2^{12121110010211} is an apocalyptic number.

12121110010211 is a deficient number, since it is larger than the sum of its proper divisors (4766463421).

12121110010211 is an equidigital number, since it uses as much as digits as its factorization.

12121110010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766463420.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12121110010211 its reverse (11201001112121), we get a palindrome (23322111122332).

The spelling of 12121110010211 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, ten thousand, two hundred eleven".