12210102121111 has 4 divisors (see below), whose sum is σ = 12213735002224. Its totient is φ = 12206469240000.

The previous prime is 12210102121031. The next prime is 12210102121157. The reversal of 12210102121111 is 11112120101221.

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 12210102121111 - 2²⁵ = 12210068566679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210102122111) 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 3 ways as a sum of consecutive naturals, for example, 1816435515 + ... + 1816442236.

It is an arithmetic number, because the mean of its divisors is an integer number (3053433750556).

Almost surely, 2^{12210102121111} is an apocalyptic number.

12210102121111 is a deficient number, since it is larger than the sum of its proper divisors (3632881113).

12210102121111 is an equidigital number, since it uses as much as digits as its factorization.

12210102121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632881112.

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

Adding to 12210102121111 its reverse (11112120101221), we get a palindrome (23322222222332).

The spelling of 12210102121111 in words is "twelve trillion, two hundred ten billion, one hundred two million, one hundred twenty-one thousand, one hundred eleven".