201001242021101 has 2 divisors, whose sum is σ = 201001242021102. Its totient is φ = 201001242021100.

The previous prime is 201001242021091. The next prime is 201001242021131. The reversal of 201001242021101 is 101120242100102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127376278932100 + 73624963089001 = 11286110^2 + 8580499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201001242021101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201001242021101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201001242021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500621010550 + 100500621010551.

It is an arithmetic number, because the mean of its divisors is an integer number (100500621010551).

Almost surely, 2^{201001242021101} is an apocalyptic number.

It is an amenable number.

201001242021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001242021101 is an equidigital number, since it uses as much as digits as its factorization.

201001242021101 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 17.

Adding to 201001242021101 its reverse (101120242100102), we get a palindrome (302121484121203).

The spelling of 201001242021101 in words is "two hundred one trillion, one billion, two hundred forty-two million, twenty-one thousand, one hundred one".