20012200001201 has 2 divisors, whose sum is σ = 20012200001202. Its totient is φ = 20012200001200.

The previous prime is 20012200001197. The next prime is 20012200001237. The reversal of 20012200001201 is 10210000221002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19943807290801 + 68392710400 = 4465849^2 + 261520^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012200001201 - 2² = 20012200001197 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012200001701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100000600 + 10006100000601.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100000601).

Almost surely, 2^{20012200001201} is an apocalyptic number.

It is an amenable number.

20012200001201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012200001201 is an equidigital number, since it uses as much as digits as its factorization.

20012200001201 is an evil number, because the sum of its binary digits is even.

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

Adding to 20012200001201 its reverse (10210000221002), we get a palindrome (30222200222203).

The spelling of 20012200001201 in words is "twenty trillion, twelve billion, two hundred million, one thousand, two hundred one".