220030211 has 4 divisors (see below), whose sum is σ = 223314312. Its totient is φ = 216746112.

The previous prime is 220030193. The next prime is 220030243. The reversal of 220030211 is 112030022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220030211 - 2¹⁸ = 219768067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220030192 and 220030201.

It is not an unprimeable number, because it can be changed into a prime (220630211) 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, 1641950 + ... + 1642083.

It is an arithmetic number, because the mean of its divisors is an integer number (55828578).

Almost surely, 2^220030211 is an apocalyptic number.

220030211 is a deficient number, since it is larger than the sum of its proper divisors (3284101).

220030211 is an equidigital number, since it uses as much as digits as its factorization.

220030211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284100.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220030211 is about 14833.4153518332. The cubic root of 220030211 is about 603.7087054588.

Adding to 220030211 its reverse (112030022), we get a palindrome (332060233).

The spelling of 220030211 in words is "two hundred twenty million, thirty thousand, two hundred eleven".