6222440212 has 24 divisors (see below), whose sum is σ = 10977913800. Its totient is φ = 3085996416.

The previous prime is 6222440209. The next prime is 6222440221. The reversal of 6222440212 is 2120442226.

It can be written as a sum of positive squares in 4 ways, for example, as 2432067856 + 3790372356 = 49316^2 + 61566^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233778 + ... + 259030.

It is an arithmetic number, because the mean of its divisors is an integer number (457413075).

Almost surely, 2^6222440212 is an apocalyptic number.

It is an amenable number.

6222440212 is a deficient number, since it is larger than the sum of its proper divisors (4755473588).

6222440212 is a wasteful number, since it uses less digits than its factorization.

6222440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25755 (or 25753 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 6222440212 is about 78882.4455249709. The cubic root of 6222440212 is about 1839.3042631914.

Adding to 6222440212 its reverse (2120442226), we get a palindrome (8342882438).

The spelling of 6222440212 in words is "six billion, two hundred twenty-two million, four hundred forty thousand, two hundred twelve".