2213220 has 24 divisors (see below), whose sum is σ = 6197184. Its totient is φ = 590176.

The previous prime is 2213209. The next prime is 2213243. The reversal of 2213220 is 223122.

It is a super-3 number, since 3×2213220³ = 32523330545634744000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2213196 and 2213205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18384 + ... + 18503.

It is an arithmetic number, because the mean of its divisors is an integer number (258216).

2^2213220 is an apocalyptic number.

2213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213220 is an abundant number, since it is smaller than the sum of its proper divisors (3983964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2213220 is a wasteful number, since it uses less digits than its factorization.

2213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36899 (or 36897 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2213220 is about 1487.6894837297. The cubic root of 2213220 is about 130.3191370139.

Adding to 2213220 its reverse (223122), we get a palindrome (2436342).

The spelling of 2213220 in words is "two million, two hundred thirteen thousand, two hundred twenty".