211328801 has 4 divisors (see below), whose sum is σ = 216483204. Its totient is φ = 206174400.

The previous prime is 211328753. The next prime is 211328857. The reversal of 211328801 is 108823112.

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 84180625 + 127148176 = 9175^2 + 11276^2 .

It is a cyclic number.

It is not a de Polignac number, because 211328801 - 2¹⁴ = 211312417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211328881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577140 + ... + 2577221.

It is an arithmetic number, because the mean of its divisors is an integer number (54120801).

Almost surely, 2^211328801 is an apocalyptic number.

It is an amenable number.

211328801 is a deficient number, since it is larger than the sum of its proper divisors (5154403).

211328801 is an equidigital number, since it uses as much as digits as its factorization.

211328801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154402.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 211328801 is about 14537.1524378057. The cubic root of 211328801 is about 595.6432569615.

The spelling of 211328801 in words is "two hundred eleven million, three hundred twenty-eight thousand, eight hundred one".