12101122011211 has 4 divisors (see below), whose sum is σ = 12106805959800. Its totient is φ = 12095438062624.

The previous prime is 12101122011151. The next prime is 12101122011217. The reversal of 12101122011211 is 11211022110121.

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 12101122011211 - 2⁹ = 12101122010699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101122011217) 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, 2841971101 + ... + 2841975358.

It is an arithmetic number, because the mean of its divisors is an integer number (3026701489950).

Almost surely, 2^{12101122011211} is an apocalyptic number.

12101122011211 is a deficient number, since it is larger than the sum of its proper divisors (5683948589).

12101122011211 is an equidigital number, since it uses as much as digits as its factorization.

12101122011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683948588.

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

Adding to 12101122011211 its reverse (11211022110121), we get a palindrome (23312144121332).

The spelling of 12101122011211 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, eleven thousand, two hundred eleven".