12001021201 has 16 divisors (see below), whose sum is σ = 13211493120. Its totient is φ = 10833546240.

The previous prime is 12001021189. The next prime is 12001021217. The reversal of 12001021201 is 10212010021.

It is a cyclic number.

It is not a de Polignac number, because 12001021201 - 2⁷ = 12001021073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001021271) 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, 107496 + ... + 188566.

It is an arithmetic number, because the mean of its divisors is an integer number (825718320).

Almost surely, 2^12001021201 is an apocalyptic number.

It is an amenable number.

12001021201 is a deficient number, since it is larger than the sum of its proper divisors (1210471919).

12001021201 is a wasteful number, since it uses less digits than its factorization.

12001021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81336.

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

Adding to 12001021201 its reverse (10212010021), we get a palindrome (22213031222).

The spelling of 12001021201 in words is "twelve billion, one million, twenty-one thousand, two hundred one".