2220210 has 40 divisors (see below), whose sum is σ = 5972076. Its totient is φ = 591840.

The previous prime is 2220209. The next prime is 2220263. The reversal of 2220210 is 120222.

It can be written as a sum of positive squares in 2 ways, for example, as 2152089 + 68121 = 1467^2 + 261^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2220192 and 2220201.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 561 + ... + 2180.

2^2220210 is an apocalyptic number.

2220210 is an abundant number, since it is smaller than the sum of its proper divisors (3751866).

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

2220210 is a wasteful number, since it uses less digits than its factorization.

2220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2751 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2220210 is about 1490.0369122945. The cubic root of 2220210 is about 130.4561882261.

Adding to 2220210 its reverse (120222), we get a palindrome (2340432).

The spelling of 2220210 in words is "two million, two hundred twenty thousand, two hundred ten".