12101212110111 has 8 divisors (see below), whose sum is σ = 16141795034544. Its totient is φ = 8064051962880.

The previous prime is 12101212110079. The next prime is 12101212110173. The reversal of 12101212110111 is 11101121210121.

12101212110111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12101212110111 - 2⁵ = 12101212110079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101212111111) 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, 855686050 + ... + 855700191.

It is an arithmetic number, because the mean of its divisors is an integer number (2017724379318).

Almost surely, 2^{12101212110111} is an apocalyptic number.

12101212110111 is a deficient number, since it is larger than the sum of its proper divisors (4040582924433).

12101212110111 is a wasteful number, since it uses less digits than its factorization.

12101212110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711388601.

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

Adding to 12101212110111 its reverse (11101121210121), we get a palindrome (23202333320232).

The spelling of 12101212110111 in words is "twelve trillion, one hundred one billion, two hundred twelve million, one hundred ten thousand, one hundred eleven".