12001112002001 has 2 divisors, whose sum is σ = 12001112002002. Its totient is φ = 12001112002000.

The previous prime is 12001112001971. The next prime is 12001112002039. The reversal of 12001112002001 is 10020021110021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11199999289600 + 801112712401 = 3346640^2 + 895049^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001112002001 - 2¹⁴ = 12001111985617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001112002051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000556001000 + 6000556001001.

It is an arithmetic number, because the mean of its divisors is an integer number (6000556001001).

Almost surely, 2^{12001112002001} is an apocalyptic number.

It is an amenable number.

12001112002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001112002001 is an equidigital number, since it uses as much as digits as its factorization.

12001112002001 is an evil number, because the sum of its binary digits is even.

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

Adding to 12001112002001 its reverse (10020021110021), we get a palindrome (22021133112022).

The spelling of 12001112002001 in words is "twelve trillion, one billion, one hundred twelve million, two thousand, one".