12100211001001 has 4 divisors (see below), whose sum is σ = 12737064211600. Its totient is φ = 11463357790404.

The previous prime is 12100211000939. The next prime is 12100211001007. The reversal of 12100211001001 is 10010011200121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12100211001001 - 2²⁵ = 12100177446569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100211001007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318426605271 + ... + 318426605308.

It is an arithmetic number, because the mean of its divisors is an integer number (3184266052900).

Almost surely, 2^{12100211001001} is an apocalyptic number.

It is an amenable number.

12100211001001 is a deficient number, since it is larger than the sum of its proper divisors (636853210599).

12100211001001 is an equidigital number, since it uses as much as digits as its factorization.

12100211001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636853210598.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12100211001001 its reverse (10010011200121), we get a palindrome (22110222201122).

The spelling of 12100211001001 in words is "twelve trillion, one hundred billion, two hundred eleven million, one thousand, one".