12012112101111 has 8 divisors (see below), whose sum is σ = 16016237155200. Its totient is φ = 8008030890552.

The previous prime is 12012112101107. The next prime is 12012112101137. The reversal of 12012112101111 is 11110121121021.

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

It is not a de Polignac number, because 12012112101111 - 2² = 12012112101107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012112101511) 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, 10316185 + ... + 11421378.

It is an arithmetic number, because the mean of its divisors is an integer number (2002029644400).

Almost surely, 2^{12012112101111} is an apocalyptic number.

12012112101111 is a deficient number, since it is larger than the sum of its proper divisors (4004125054089).

12012112101111 is a wasteful number, since it uses less digits than its factorization.

12012112101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21921765.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12012112101111 its reverse (11110121121021), we get a palindrome (23122233222132).

The spelling of 12012112101111 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred one thousand, one hundred eleven".