222310212 has 12 divisors (see below), whose sum is σ = 518723856. Its totient is φ = 74103400.

The previous prime is 222310189. The next prime is 222310219. The reversal of 222310212 is 212013222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 222310191 and 222310200.

It is not an unprimeable number, because it can be changed into a prime (222310219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9262914 + ... + 9262937.

It is an arithmetic number, because the mean of its divisors is an integer number (43226988).

Almost surely, 2^222310212 is an apocalyptic number.

It is an amenable number.

222310212 is an abundant number, since it is smaller than the sum of its proper divisors (296413644).

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

222310212 is a wasteful number, since it uses less digits than its factorization.

222310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18525858 (or 18525856 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222310212 is about 14910.0708247815. The cubic root of 222310212 is about 605.7867977469.

Adding to 222310212 its reverse (212013222), we get a palindrome (434323434).

The spelling of 222310212 in words is "two hundred twenty-two million, three hundred ten thousand, two hundred twelve".