12001210210001 has 4 divisors (see below), whose sum is σ = 12001244168100. Its totient is φ = 12001176251904.

The previous prime is 12001210209929. The next prime is 12001210210007. The reversal of 12001210210001 is 10001201210021.

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 4796275201600 + 7204935008401 = 2190040^2 + 2684201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001210210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001210210007) 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, 16443296 + ... + 17157633.

It is an arithmetic number, because the mean of its divisors is an integer number (3000311042025).

Almost surely, 2^{12001210210001} is an apocalyptic number.

It is an amenable number.

12001210210001 is a deficient number, since it is larger than the sum of its proper divisors (33958099).

12001210210001 is an equidigital number, since it uses as much as digits as its factorization.

12001210210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33958098.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001210210001 its reverse (10001201210021), we get a palindrome (22002411420022).

The spelling of 12001210210001 in words is "twelve trillion, one billion, two hundred ten million, two hundred ten thousand, one".