220099 has 12 divisors (see below), whose sum is σ = 258552. Its totient is φ = 186560.

The previous prime is 220063. The next prime is 220123. The reversal of 220099 is 990022.

It is not a de Polignac number, because 220099 - 2⁷ = 219971 is a prime.

It is a Duffinian number.

220099 is a modest number, since divided by 99 gives 22 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (220009) 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 11 ways as a sum of consecutive naturals, for example, 2004 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (21546).

2²²⁰⁰⁹⁹ is an apocalyptic number.

220099 is a deficient number, since it is larger than the sum of its proper divisors (38453).

220099 is a wasteful number, since it uses less digits than its factorization.

220099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 220099 is about 469.1470984670. The cubic root of 220099 is about 60.3771612261.

Adding to 220099 its reverse (990022), we get a palindrome (1210121).

The spelling of 220099 in words is "two hundred twenty thousand, ninety-nine".