12012001220201 has 4 divisors (see below), whose sum is σ = 12056655500100. Its totient is φ = 11967346940304.

The previous prime is 12012001220117. The next prime is 12012001220227. The reversal of 12012001220201 is 10202210021021.

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 2282966880601 + 9729034339600 = 1510949^2 + 3119140^2 .

It is a cyclic number.

It is not a de Polignac number, because 12012001220201 - 2¹⁸ = 12012000958057 is a prime.

It is a super-3 number, since 3×12012001220201³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012001220281) 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, 22327139546 + ... + 22327140083.

It is an arithmetic number, because the mean of its divisors is an integer number (3014163875025).

Almost surely, 2^{12012001220201} is an apocalyptic number.

It is an amenable number.

12012001220201 is a deficient number, since it is larger than the sum of its proper divisors (44654279899).

12012001220201 is an equidigital number, since it uses as much as digits as its factorization.

12012001220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44654279898.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012001220201 its reverse (10202210021021), we get a palindrome (22214211241222).

The spelling of 12012001220201 in words is "twelve trillion, twelve billion, one million, two hundred twenty thousand, two hundred one".