201211022011001 has 2 divisors, whose sum is σ = 201211022011002. Its totient is φ = 201211022011000.

The previous prime is 201211022010953. The next prime is 201211022011019. The reversal of 201211022011001 is 100110220112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119265510765625 + 81945511245376 = 10920875^2 + 9052376^2 .

It is a cyclic number.

It is not a de Polignac number, because 201211022011001 - 2¹⁴ = 201211021994617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (201211022011081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605511005500 + 100605511005501.

It is an arithmetic number, because the mean of its divisors is an integer number (100605511005501).

Almost surely, 2^{201211022011001} is an apocalyptic number.

It is an amenable number.

201211022011001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211022011001 is an equidigital number, since it uses as much as digits as its factorization.

201211022011001 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 14.

Adding to 201211022011001 its reverse (100110220112102), we get a palindrome (301321242123103).

The spelling of 201211022011001 in words is "two hundred one trillion, two hundred eleven billion, twenty-two million, eleven thousand, one".