20011200112201 has 2 divisors, whose sum is σ = 20011200112202. Its totient is φ = 20011200112200.

The previous prime is 20011200112199. The next prime is 20011200112207. The reversal of 20011200112201 is 10221100211002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14207630028601 + 5803570083600 = 3769301^2 + 2409060^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011200112201 - 2¹ = 20011200112199 is a prime.

Together with 20011200112199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20011200112207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005600056100 + 10005600056101.

It is an arithmetic number, because the mean of its divisors is an integer number (10005600056101).

Almost surely, 2^{20011200112201} is an apocalyptic number.

It is an amenable number.

20011200112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011200112201 is an equidigital number, since it uses as much as digits as its factorization.

20011200112201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011200112201 its reverse (10221100211002), we get a palindrome (30232300323203).

The spelling of 20011200112201 in words is "twenty trillion, eleven billion, two hundred million, one hundred twelve thousand, two hundred one".