201201221113 has 2 divisors, whose sum is σ = 201201221114. Its totient is φ = 201201221112.

The previous prime is 201201221093. The next prime is 201201221119. The reversal of 201201221113 is 311122102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157289180409 + 43912040704 = 396597^2 + 209552^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201221113 - 2⁹ = 201201220601 is a prime.

It is not a weakly prime, because it can be changed into another prime (201201221119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600610556 + 100600610557.

It is an arithmetic number, because the mean of its divisors is an integer number (100600610557).

Almost surely, 2^201201221113 is an apocalyptic number.

It is an amenable number.

201201221113 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201221113 is an equidigital number, since it uses as much as digits as its factorization.

201201221113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 201201221113 its reverse (311122102102), we get a palindrome (512323323215).

The spelling of 201201221113 in words is "two hundred one billion, two hundred one million, two hundred twenty-one thousand, one hundred thirteen".