12102120010111 has 8 divisors (see below), whose sum is σ = 12109435574544. Its totient is φ = 12094804787520.

The previous prime is 12102120010091. The next prime is 12102120010159. The reversal of 12102120010111 is 11101002120121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12102120010111 - 2¹³ = 12102120001919 is a prime.

It is a super-2 number, since 2×12102120010111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102120010091 and 12102120010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102120014111) 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 7 ways as a sum of consecutive naturals, for example, 125836035 + ... + 125932171.

It is an arithmetic number, because the mean of its divisors is an integer number (1513679446818).

Almost surely, 2^{12102120010111} is an apocalyptic number.

12102120010111 is a deficient number, since it is larger than the sum of its proper divisors (7315564433).

12102120010111 is an equidigital number, since it uses as much as digits as its factorization.

12102120010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170921.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12102120010111 its reverse (11101002120121), we get a palindrome (23203122130232).

It can be divided in two parts, 12102120010 and 111, that added together give a palindrome (12102120121).

The spelling of 12102120010111 in words is "twelve trillion, one hundred two billion, one hundred twenty million, ten thousand, one hundred eleven".