220215 has 16 divisors (see below), whose sum is σ = 360288. Its totient is φ = 114816.

The previous prime is 220189. The next prime is 220217. The reversal of 220215 is 512022.

It is not a de Polignac number, because 220215 - 2⁶ = 220151 is a prime.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 220215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220217) 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 15 ways as a sum of consecutive naturals, for example, 657 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (22518).

2²²⁰²¹⁵ is an apocalyptic number.

220215 is a deficient number, since it is larger than the sum of its proper divisors (140073).

220215 is a wasteful number, since it uses less digits than its factorization.

220215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 220215 is about 469.2707107843. The cubic root of 220215 is about 60.3877663336.

Adding to 220215 its reverse (512022), we get a palindrome (732237).

It can be divided in two parts, 220 and 215, that added together give a triangular number (435 = T₂₉).

The spelling of 220215 in words is "two hundred twenty thousand, two hundred fifteen".