201122230120121 has 2 divisors, whose sum is σ = 201122230120122. Its totient is φ = 201122230120120.

The previous prime is 201122230120109. The next prime is 201122230120129. The reversal of 201122230120121 is 121021032221102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200529276218896 + 592953901225 = 14160836^2 + 770035^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122230120121 - 2¹⁸ = 201122229857977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201122230120093 and 201122230120102.

It is not a weakly prime, because it can be changed into another prime (201122230120129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561115060060 + 100561115060061.

It is an arithmetic number, because the mean of its divisors is an integer number (100561115060061).

Almost surely, 2^{201122230120121} is an apocalyptic number.

It is an amenable number.

201122230120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122230120121 is an equidigital number, since it uses as much as digits as its factorization.

201122230120121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201122230120121 its reverse (121021032221102), we get a palindrome (322143262341223).

The spelling of 201122230120121 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred thirty million, one hundred twenty thousand, one hundred twenty-one".