12100212112001 has 4 divisors (see below), whose sum is σ = 13030997659092. Its totient is φ = 11169426564912.

The previous prime is 12100212111961. The next prime is 12100212112019. The reversal of 12100212112001 is 10021121200121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7702484362225 + 4397727749776 = 2775335^2 + 2097076^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100212112001 - 2¹⁰ = 12100212110977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12100212112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465392773526 + ... + 465392773551.

It is an arithmetic number, because the mean of its divisors is an integer number (3257749414773).

Almost surely, 2^{12100212112001} is an apocalyptic number.

It is an amenable number.

12100212112001 is a deficient number, since it is larger than the sum of its proper divisors (930785547091).

12100212112001 is an equidigital number, since it uses as much as digits as its factorization.

12100212112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930785547090.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12100212112001 its reverse (10021121200121), we get a palindrome (22121333312122).

The spelling of 12100212112001 in words is "twelve trillion, one hundred billion, two hundred twelve million, one hundred twelve thousand, one".