201020021212201 has 2 divisors, whose sum is σ = 201020021212202. Its totient is φ = 201020021212200.

The previous prime is 201020021212183. The next prime is 201020021212247. The reversal of 201020021212201 is 102212120020102.

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., 173077178574400 + 27942842637801 = 13155880^2 + 5286099^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020021212201 - 2⁹ = 201020021211689 is a prime.

It is not a weakly prime, because it can be changed into another prime (201020021212271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510010606100 + 100510010606101.

It is an arithmetic number, because the mean of its divisors is an integer number (100510010606101).

Almost surely, 2^{201020021212201} is an apocalyptic number.

It is an amenable number.

201020021212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020021212201 is an equidigital number, since it uses as much as digits as its factorization.

201020021212201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201020021212201 its reverse (102212120020102), we get a palindrome (303232141232303).

The spelling of 201020021212201 in words is "two hundred one trillion, twenty billion, twenty-one million, two hundred twelve thousand, two hundred one".