12012101012111 has 16 divisors (see below), whose sum is σ = 13026953443680. Its totient is φ = 11034595630080.

The previous prime is 12012101012081. The next prime is 12012101012137. The reversal of 12012101012111 is 11121010121021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012101012111 is a prime.

It is a super-2 number, since 2×12012101012111² (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 (12012101012161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48252830 + ... + 48501131.

It is an arithmetic number, because the mean of its divisors is an integer number (814184590230).

Almost surely, 2^{12012101012111} is an apocalyptic number.

12012101012111 is a deficient number, since it is larger than the sum of its proper divisors (1014852431569).

12012101012111 is a wasteful number, since it uses less digits than its factorization.

12012101012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96754154.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12012101012111 its reverse (11121010121021), we get a palindrome (23133111133132).

The spelling of 12012101012111 in words is "twelve trillion, twelve billion, one hundred one million, twelve thousand, one hundred eleven".