12120222121201 has 8 divisors (see below), whose sum is σ = 12127818888360. Its totient is φ = 12112626052992.

The previous prime is 12120222121193. The next prime is 12120222121207. The reversal of 12120222121201 is 10212122202121.

It can be written as a sum of positive squares in 4 ways, for example, as 653356973025 + 11466865148176 = 808305^2 + 3386276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12120222121201 - 2³ = 12120222121193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120222121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36980235 + ... + 37306543.

It is an arithmetic number, because the mean of its divisors is an integer number (1515977361045).

Almost surely, 2^{12120222121201} is an apocalyptic number.

It is an amenable number.

12120222121201 is a deficient number, since it is larger than the sum of its proper divisors (7596767159).

12120222121201 is a wasteful number, since it uses less digits than its factorization.

12120222121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349475.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12120222121201 its reverse (10212122202121), we get a palindrome (22332344323322).

The spelling of 12120222121201 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred one".