201122020221113 has 2 divisors, whose sum is σ = 201122020221114. Its totient is φ = 201122020221112.

The previous prime is 201122020221041. The next prime is 201122020221131. The reversal of 201122020221113 is 311122020221102.

Together with next prime (201122020221131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198480394126249 + 2641626094864 = 14088307^2 + 1625308^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122020221113 - 2²² = 201122016026809 is a prime.

It is not a weakly prime, because it can be changed into another prime (201122020224113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561010110556 + 100561010110557.

It is an arithmetic number, because the mean of its divisors is an integer number (100561010110557).

Almost surely, 2^{201122020221113} is an apocalyptic number.

It is an amenable number.

201122020221113 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122020221113 is an equidigital number, since it uses as much as digits as its factorization.

201122020221113 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 201122020221113 its reverse (311122020221102), we get a palindrome (512244040442215).

The spelling of 201122020221113 in words is "two hundred one trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred thirteen".