12002001220001 has 16 divisors (see below), whose sum is σ = 13043296568064. Its totient is φ = 10977627596544.

The previous prime is 12002001219997. The next prime is 12002001220057. The reversal of 12002001220001 is 10002210020021.

It is a happy number.

12002001220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12002001220001 - 2² = 12002001219997 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 (12002001220901) 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, 4058840 + ... + 6362246.

It is an arithmetic number, because the mean of its divisors is an integer number (815206035504).

Almost surely, 2^{12002001220001} is an apocalyptic number.

It is an amenable number.

12002001220001 is a deficient number, since it is larger than the sum of its proper divisors (1041295348063).

12002001220001 is a wasteful number, since it uses less digits than its factorization.

12002001220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307080.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12002001220001 its reverse (10002210020021), we get a palindrome (22004211240022).

The spelling of 12002001220001 in words is "twelve trillion, two billion, one million, two hundred twenty thousand, one".