201122002221181 has 2 divisors, whose sum is σ = 201122002221182. Its totient is φ = 201122002221180.

The previous prime is 201122002221067. The next prime is 201122002221199. The reversal of 201122002221181 is 181122200221102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197730253832281 + 3391748388900 = 14061659^2 + 1841670^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122002221181 - 2¹¹ = 201122002219133 is a prime.

It is a super-2 number, since 2×201122002221181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122002221781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561001110590 + 100561001110591.

It is an arithmetic number, because the mean of its divisors is an integer number (100561001110591).

Almost surely, 2^{201122002221181} is an apocalyptic number.

It is an amenable number.

201122002221181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122002221181 is an equidigital number, since it uses as much as digits as its factorization.

201122002221181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 201122002221181 its reverse (181122200221102), we get a palindrome (382244202442283).

The spelling of 201122002221181 in words is "two hundred one trillion, one hundred twenty-two billion, two million, two hundred twenty-one thousand, one hundred eighty-one".