12102102012111 has 8 divisors (see below), whose sum is σ = 16136485007664. Its totient is φ = 8067893512320.

The previous prime is 12102102012109. The next prime is 12102102012127. The reversal of 12102102012111 is 11121020120121.

It is a happy number.

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

It is not a de Polignac number, because 12102102012111 - 2¹ = 12102102012109 is a prime.

It is a super-2 number, since 2×12102102012111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102102012151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43462026 + ... + 43739591.

It is an arithmetic number, because the mean of its divisors is an integer number (2017060625958).

Almost surely, 2^{12102102012111} is an apocalyptic number.

12102102012111 is a deficient number, since it is larger than the sum of its proper divisors (4034382995553).

12102102012111 is an equidigital number, since it uses as much as digits as its factorization.

12102102012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87247881.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12102102012111 its reverse (11121020120121), we get a palindrome (23223122132232).

The spelling of 12102102012111 in words is "twelve trillion, one hundred two billion, one hundred two million, twelve thousand, one hundred eleven".