201102322121 has 2 divisors, whose sum is σ = 201102322122. Its totient is φ = 201102322120.

The previous prime is 201102322097. The next prime is 201102322123. The reversal of 201102322121 is 121223201102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198719808400 + 2382513721 = 445780^2 + 48811^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102322121 - 2¹⁰ = 201102321097 is a prime.

It is a Sophie Germain prime.

Together with 201102322123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201102322121.

It is not a weakly prime, because it can be changed into another prime (201102322123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551161060 + 100551161061.

It is an arithmetic number, because the mean of its divisors is an integer number (100551161061).

Almost surely, 2^201102322121 is an apocalyptic number.

It is an amenable number.

201102322121 is a deficient number, since it is larger than the sum of its proper divisors (1).

201102322121 is an equidigital number, since it uses as much as digits as its factorization.

201102322121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201102322121 its reverse (121223201102), we get a palindrome (322325523223).

The spelling of 201102322121 in words is "two hundred one billion, one hundred two million, three hundred twenty-two thousand, one hundred twenty-one".