12011002101 has 12 divisors (see below), whose sum is σ = 19827686112. Its totient is φ = 6863429736.

The previous prime is 12011002097. The next prime is 12011002151. The reversal of 12011002101 is 10120011021.

It is a happy number.

It is not a de Polignac number, because 12011002101 - 2² = 12011002097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011002151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95325351 + ... + 95325476.

It is an arithmetic number, because the mean of its divisors is an integer number (1652307176).

Almost surely, 2^12011002101 is an apocalyptic number.

It is an amenable number.

12011002101 is a deficient number, since it is larger than the sum of its proper divisors (7816684011).

12011002101 is a wasteful number, since it uses less digits than its factorization.

12011002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190650840 (or 190650837 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12011002101 its reverse (10120011021), we get a palindrome (22131013122).

The spelling of 12011002101 in words is "twelve billion, eleven million, two thousand, one hundred one".