2221010210 has 16 divisors (see below), whose sum is σ = 4014411192. Its totient is φ = 884716800.

The previous prime is 2221010189. The next prime is 2221010257. The reversal of 2221010210 is 120101222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2178929041 + 42081169 = 46679^2 + 6487^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221010191 and 2221010200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458381 + ... + 463200.

Almost surely, 2^2221010210 is an apocalyptic number.

2221010210 is a deficient number, since it is larger than the sum of its proper divisors (1793400982).

2221010210 is a wasteful number, since it uses less digits than its factorization.

2221010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921829.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2221010210 is about 47127.5949948647. The cubic root of 2221010210 is about 1304.7185938738.

Adding to 2221010210 its reverse (120101222), we get a palindrome (2341111432).

The spelling of 2221010210 in words is "two billion, two hundred twenty-one million, ten thousand, two hundred ten".