201011002002221 has 2 divisors, whose sum is σ = 201011002002222. Its totient is φ = 201011002002220.

The previous prime is 201011002002203. The next prime is 201011002002227. The reversal of 201011002002221 is 122200200110102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186090249420100 + 14920752582121 = 13641490^2 + 3862739^2 .

It is a cyclic number.

It is not a de Polignac number, because 201011002002221 - 2⁶ = 201011002002157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201011002002196 and 201011002002205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011002002227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505501001110 + 100505501001111.

It is an arithmetic number, because the mean of its divisors is an integer number (100505501001111).

Almost surely, 2^{201011002002221} is an apocalyptic number.

It is an amenable number.

201011002002221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011002002221 is an equidigital number, since it uses as much as digits as its factorization.

201011002002221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201011002002221 its reverse (122200200110102), we get a palindrome (323211202112323).

The spelling of 201011002002221 in words is "two hundred one trillion, eleven billion, two million, two thousand, two hundred twenty-one".