821467204211 has 8 divisors (see below), whose sum is σ = 823525128000. Its totient is φ = 819410296320.

The previous prime is 821467204163. The next prime is 821467204213. The reversal of 821467204211 is 112402764128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 821467204211 - 2¹⁰ = 821467203187 is a prime.

It is a super-2 number, since 2×821467204211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (821467204213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378385 + ... + 1882253.

It is an arithmetic number, because the mean of its divisors is an integer number (102940641000).

Almost surely, 2^821467204211 is an apocalyptic number.

821467204211 is a deficient number, since it is larger than the sum of its proper divisors (2057923789).

821467204211 is a wasteful number, since it uses less digits than its factorization.

821467204211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507949.

The product of its (nonzero) digits is 43008, while the sum is 38.

Adding to 821467204211 its reverse (112402764128), we get a palindrome (933869968339).

The spelling of 821467204211 in words is "eight hundred twenty-one billion, four hundred sixty-seven million, two hundred four thousand, two hundred eleven".