220808211 has 32 divisors (see below), whose sum is σ = 332774400. Its totient is φ = 129216384.

The previous prime is 220808197. The next prime is 220808213. The reversal of 220808211 is 112808022.

It is not a de Polignac number, because 220808211 - 2⁵ = 220808179 is a prime.

It is a super-4 number, since 4×220808211⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (220808213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177885 + ... + 179121.

It is an arithmetic number, because the mean of its divisors is an integer number (10399200).

Almost surely, 2^220808211 is an apocalyptic number.

220808211 is a deficient number, since it is larger than the sum of its proper divisors (111966189).

220808211 is a wasteful number, since it uses less digits than its factorization.

220808211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 220808211 is about 14859.6167850991. The cubic root of 220808211 is about 604.4194152475.

The spelling of 220808211 in words is "two hundred twenty million, eight hundred eight thousand, two hundred eleven".