12811211 has 8 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 10954728.

The previous prime is 12811189. The next prime is 12811223. The reversal of 12811211 is 11211821.

12811211 is nontrivially palindromic in base 3.

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 12811211 - 2¹⁴ = 12794827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12811211.

It is not an unprimeable number, because it can be changed into a prime (12811231) 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, 1310 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^12811211 is an apocalyptic number.

12811211 is a deficient number, since it is larger than the sum of its proper divisors (1865269).

12811211 is an equidigital number, since it uses as much as digits as its factorization.

12811211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its digits is 32, while the sum is 17.

The square root of 12811211 is about 3579.2752059600. The cubic root of 12811211 is about 233.9896932174.

The spelling of 12811211 in words is "twelve million, eight hundred eleven thousand, two hundred eleven".