12001210002001 has 16 divisors (see below), whose sum is σ = 13174773992640. Its totient is φ = 10841426104320.

The previous prime is 12001210001987. The next prime is 12001210002029. The reversal of 12001210002001 is 10020001210021.

It is a cyclic number.

It is not a de Polignac number, because 12001210002001 - 2⁹ = 12001210001489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001210003001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10111545 + ... + 11235913.

It is an arithmetic number, because the mean of its divisors is an integer number (823423374540).

Almost surely, 2^{12001210002001} is an apocalyptic number.

12001210002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12001210002001 is a deficient number, since it is larger than the sum of its proper divisors (1173563990639).

12001210002001 is a wasteful number, since it uses less digits than its factorization.

12001210002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130496.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12001210002001 its reverse (10020001210021), we get a palindrome (22021211212022).

The spelling of 12001210002001 in words is "twelve trillion, one billion, two hundred ten million, two thousand, one".