4222212 has 12 divisors (see below), whose sum is σ = 9851856. Its totient is φ = 1407400.

The previous prime is 4222177. The next prime is 4222219. The reversal of 4222212 is 2122224.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 4222191 and 4222200.

It is not an unprimeable number, because it can be changed into a prime (4222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175914 + ... + 175937.

It is an arithmetic number, because the mean of its divisors is an integer number (820988).

Almost surely, 2^4222212 is an apocalyptic number.

It is an amenable number.

4222212 is an abundant number, since it is smaller than the sum of its proper divisors (5629644).

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

4222212 is a wasteful number, since it uses less digits than its factorization.

4222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351858 (or 351856 counting only the distinct ones).

The product of its digits is 128, while the sum is 15.

The square root of 4222212 is about 2054.8021802597. The cubic root of 4222212 is about 161.6267890921.

Adding to 4222212 its reverse (2122224), we get a palindrome (6344436).

The spelling of 4222212 in words is "four million, two hundred twenty-two thousand, two hundred twelve".