100220211 has 36 divisors (see below), whose sum is σ = 179167248. Its totient is φ = 52857792.

The previous prime is 100220209. The next prime is 100220213. The reversal of 100220211 is 112022001.

It is an interprime number because it is at equal distance from previous prime (100220209) and next prime (100220213).

It is not a de Polignac number, because 100220211 - 2¹ = 100220209 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 = 100220193 and 100220202.

It is not an unprimeable number, because it can be changed into a prime (100220213) 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 35 ways as a sum of consecutive naturals, for example, 5941 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (4976868).

Almost surely, 2^100220211 is an apocalyptic number.

100220211 is a deficient number, since it is larger than the sum of its proper divisors (78947037).

100220211 is a wasteful number, since it uses less digits than its factorization.

100220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452 (or 9436 counting only the distinct ones).

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

The square root of 100220211 is about 10011.0044950544. The cubic root of 100220211 is about 464.4993432130.

Adding to 100220211 its reverse (112022001), we get a palindrome (212242212).

The spelling of 100220211 in words is "one hundred million, two hundred twenty thousand, two hundred eleven".