201201122113 has 4 divisors (see below), whose sum is σ = 203747971840. Its totient is φ = 198654272388.

The previous prime is 201201122071. The next prime is 201201122147. The reversal of 201201122113 is 311221102102.

201201122113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311221102102 = 2 ⋅155610551051.

It is a cyclic number.

It is not a de Polignac number, because 201201122113 - 2⁹ = 201201121601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201122713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273424745 + ... + 1273424902.

It is an arithmetic number, because the mean of its divisors is an integer number (50936992960).

Almost surely, 2^201201122113 is an apocalyptic number.

It is an amenable number.

201201122113 is a deficient number, since it is larger than the sum of its proper divisors (2546849727).

201201122113 is an equidigital number, since it uses as much as digits as its factorization.

201201122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546849726.

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

Adding to 201201122113 its reverse (311221102102), we get a palindrome (512422224215).

The spelling of 201201122113 in words is "two hundred one billion, two hundred one million, one hundred twenty-two thousand, one hundred thirteen".