201001201022177 has 2 divisors, whose sum is σ = 201001201022178. Its totient is φ = 201001201022176.

The previous prime is 201001201022081. The next prime is 201001201022179. The reversal of 201001201022177 is 771220102100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201001194345121 + 6677056 = 14177489^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001201022177 - 2²⁸ = 201000932586721 is a prime.

Together with 201001201022179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201001201022179) 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, 100500600511088 + 100500600511089.

It is an arithmetic number, because the mean of its divisors is an integer number (100500600511089).

Almost surely, 2^{201001201022177} is an apocalyptic number.

It is an amenable number.

201001201022177 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001201022177 is an equidigital number, since it uses as much as digits as its factorization.

201001201022177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

Adding to 201001201022177 its reverse (771220102100102), we get a palindrome (972221303122279).

The spelling of 201001201022177 in words is "two hundred one trillion, one billion, two hundred one million, twenty-two thousand, one hundred seventy-seven".