201212310449 has 4 divisors (see below), whose sum is σ = 201230095140. Its totient is φ = 201194525760.

The previous prime is 201212310443. The next prime is 201212310491. The reversal of 201212310449 is 944013212102.

201212310449 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 71713090849 + 129499219600 = 267793^2 + 359860^2 .

It is a cyclic number.

It is not a de Polignac number, because 201212310449 - 2²⁴ = 201195533233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201212310443) 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, 8875364 + ... + 8898005.

It is an arithmetic number, because the mean of its divisors is an integer number (50307523785).

Almost surely, 2^201212310449 is an apocalyptic number.

It is an amenable number.

201212310449 is a deficient number, since it is larger than the sum of its proper divisors (17784691).

201212310449 is a wasteful number, since it uses less digits than its factorization.

201212310449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17784690.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 201212310449 in words is "two hundred one billion, two hundred twelve million, three hundred ten thousand, four hundred forty-nine".