4522212 has 18 divisors (see below), whose sum is σ = 11431238. Its totient is φ = 1507392.

The previous prime is 4522211. The next prime is 4522213. The reversal of 4522212 is 2122254.

4522212 is a `hidden beast` number, since 452 + 2 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (4522211) and next prime (4522213).

It can be written as a sum of positive squares in only one way, i.e., 2842596 + 1679616 = 1686^2 + 1296^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4522211) 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 5 ways as a sum of consecutive naturals, for example, 62773 + ... + 62844.

Almost surely, 2^4522212 is an apocalyptic number.

It is an amenable number.

4522212 is an abundant number, since it is smaller than the sum of its proper divisors (6909026).

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

4522212 is a wasteful number, since it uses less digits than its factorization.

4522212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125627 (or 125622 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 4522212 is about 2126.5493175565. The cubic root of 4522212 is about 165.3675552787.

Adding to 4522212 its reverse (2122254), we get a palindrome (6644466).

The spelling of 4522212 in words is "four million, five hundred twenty-two thousand, two hundred twelve".