2220215 has 4 divisors (see below), whose sum is σ = 2664264. Its totient is φ = 1776168.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220215 is 5120222.

2220215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2220215 - 2⁴ = 2220199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220215.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 222017 + ... + 222026.

It is an arithmetic number, because the mean of its divisors is an integer number (666066).

2^2220215 is an apocalyptic number.

2220215 is a deficient number, since it is larger than the sum of its proper divisors (444049).

2220215 is an equidigital number, since it uses as much as digits as its factorization.

2220215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444048.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2220215 is about 1490.0385901043. The cubic root of 2220215 is about 130.4562861568.

Adding to 2220215 its reverse (5120222), we get a palindrome (7340437).

The spelling of 2220215 in words is "two million, two hundred twenty thousand, two hundred fifteen".