2211222210 has 16 divisors (see below), whose sum is σ = 5306933376. Its totient is φ = 589659248.

The previous prime is 2211222203. The next prime is 2211222217. The reversal of 2211222210 is 122221122.

It is an interprime number because it is at equal distance from previous prime (2211222203) and next prime (2211222217).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211222210.

It is not an unprimeable number, because it can be changed into a prime (2211222217) by changing a digit.

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, 36853674 + ... + 36853733.

It is an arithmetic number, because the mean of its divisors is an integer number (331683336).

Almost surely, 2^2211222210 is an apocalyptic number.

2211222210 is an abundant number, since it is smaller than the sum of its proper divisors (3095711166).

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

2211222210 is a wasteful number, since it uses less digits than its factorization.

2211222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73707417.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2211222210 is about 47023.6345894275. The cubic root of 2211222210 is about 1302.7991382418.

Adding to 2211222210 its reverse (122221122), we get a palindrome (2333443332).

The spelling of 2211222210 in words is "two billion, two hundred eleven million, two hundred twenty-two thousand, two hundred ten".