12101102122111 has 4 divisors (see below), whose sum is σ = 12101109373224. Its totient is φ = 12101094871000.

The previous prime is 12101102122073. The next prime is 12101102122121. The reversal of 12101102122111 is 11122120110121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12101102122111 - 2⁹ = 12101102121599 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 (12101102122121) 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, 280461 + ... + 4927561.

It is an arithmetic number, because the mean of its divisors is an integer number (3025277343306).

Almost surely, 2^{12101102122111} is an apocalyptic number.

12101102122111 is a deficient number, since it is larger than the sum of its proper divisors (7251113).

12101102122111 is an equidigital number, since it uses as much as digits as its factorization.

12101102122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251112.

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

Adding to 12101102122111 its reverse (11122120110121), we get a palindrome (23223222232232).

The spelling of 12101102122111 in words is "twelve trillion, one hundred one billion, one hundred two million, one hundred twenty-two thousand, one hundred eleven".