2212211212 has 24 divisors (see below), whose sum is σ = 3998639232. Its totient is φ = 1069785600.

The previous prime is 2212211171. The next prime is 2212211213. The reversal of 2212211212 is 2121122122.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2212211213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253758 + ... + 262330.

It is an arithmetic number, because the mean of its divisors is an integer number (166609968).

Almost surely, 2^2212211212 is an apocalyptic number.

It is an amenable number.

2212211212 is a deficient number, since it is larger than the sum of its proper divisors (1786428020).

2212211212 is a wasteful number, since it uses less digits than its factorization.

2212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689 (or 10687 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 2212211212 is about 47034.1494235837. The cubic root of 2212211212 is about 1302.9933413842.

Adding to 2212211212 its reverse (2121122122), we get a palindrome (4333333334).

The spelling of 2212211212 in words is "two billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".