12102012112011 has 4 divisors (see below), whose sum is σ = 16136016149352. Its totient is φ = 8068008074672.

The previous prime is 12102012111991. The next prime is 12102012112049. The reversal of 12102012112011 is 11021121020121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12102012112011 - 2⁵ = 12102012111979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12102012117011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017002018666 + ... + 2017002018671.

It is an arithmetic number, because the mean of its divisors is an integer number (4034004037338).

Almost surely, 2^{12102012112011} is an apocalyptic number.

12102012112011 is a deficient number, since it is larger than the sum of its proper divisors (4034004037341).

12102012112011 is an equidigital number, since it uses as much as digits as its factorization.

12102012112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034004037340.

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

Adding to 12102012112011 its reverse (11021121020121), we get a palindrome (23123133132132).

The spelling of 12102012112011 in words is "twelve trillion, one hundred two billion, twelve million, one hundred twelve thousand, eleven".