220100211 has 12 divisors (see below), whose sum is σ = 318180720. Its totient is φ = 146614320.

The previous prime is 220100171. The next prime is 220100291. The reversal of 220100211 is 112001022.

It is not a de Polignac number, because 220100211 - 2⁹ = 220099699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 220100193 and 220100202.

It is not an unprimeable number, because it can be changed into a prime (220100291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2601 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (26515060).

Almost surely, 2^220100211 is an apocalyptic number.

220100211 is a deficient number, since it is larger than the sum of its proper divisors (98080509).

220100211 is a wasteful number, since it uses less digits than its factorization.

220100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19866 (or 19863 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 220100211 is about 14835.7747017134. The cubic root of 220100211 is about 603.7727195905.

Adding to 220100211 its reverse (112001022), we get a palindrome (332101233).

The spelling of 220100211 in words is "two hundred twenty million, one hundred thousand, two hundred eleven".