8421275201 has 4 divisors (see below), whose sum is σ = 8522736432. Its totient is φ = 8319813972.

The previous prime is 8421275183. The next prime is 8421275207. The reversal of 8421275201 is 1025721248.

8421275201 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 8421275201 - 2¹⁸ = 8421013057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8421275207) 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, 50730491 + ... + 50730656.

It is an arithmetic number, because the mean of its divisors is an integer number (2130684108).

Almost surely, 2^8421275201 is an apocalyptic number.

It is an amenable number.

8421275201 is a deficient number, since it is larger than the sum of its proper divisors (101461231).

8421275201 is a wasteful number, since it uses less digits than its factorization.

8421275201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101461230.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 8421275201 is about 91767.5062372297. The cubic root of 8421275201 is about 2034.5074601576.

Adding to 8421275201 its reverse (1025721248), we get a palindrome (9446996449).

The spelling of 8421275201 in words is "eight billion, four hundred twenty-one million, two hundred seventy-five thousand, two hundred one".