201012212113 has 4 divisors (see below), whose sum is σ = 201223138788. Its totient is φ = 200801285440.

The previous prime is 201012212087. The next prime is 201012212143. The reversal of 201012212113 is 311212210102.

201012212113 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.

It can be written as a sum of positive squares in 2 ways, for example, as 126901950289 + 74110261824 = 356233^2 + 272232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012212113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201012212143) 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, 105461908 + ... + 105463813.

It is an arithmetic number, because the mean of its divisors is an integer number (50305784697).

Almost surely, 2^201012212113 is an apocalyptic number.

It is an amenable number.

201012212113 is a deficient number, since it is larger than the sum of its proper divisors (210926675).

201012212113 is an equidigital number, since it uses as much as digits as its factorization.

201012212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210926674.

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

Adding to 201012212113 its reverse (311212210102), we get a palindrome (512224422215).

The spelling of 201012212113 in words is "two hundred one billion, twelve million, two hundred twelve thousand, one hundred thirteen".