12122102211011 has 4 divisors (see below), whose sum is σ = 13054571611872. Its totient is φ = 11189632810152.

The previous prime is 12122102210971. The next prime is 12122102211019. The reversal of 12122102211011 is 11011220122121.

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 12122102211011 - 2²⁶ = 12122035102147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122102211019) 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 3 ways as a sum of consecutive naturals, for example, 466234700411 + ... + 466234700436.

It is an arithmetic number, because the mean of its divisors is an integer number (3263642902968).

Almost surely, 2^{12122102211011} is an apocalyptic number.

12122102211011 is a deficient number, since it is larger than the sum of its proper divisors (932469400861).

12122102211011 is an equidigital number, since it uses as much as digits as its factorization.

12122102211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932469400860.

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

Adding to 12122102211011 its reverse (11011220122121), we get a palindrome (23133322333132).

The spelling of 12122102211011 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, two hundred eleven thousand, eleven".