220434212 has 12 divisors (see below), whose sum is σ = 386149260. Its totient is φ = 110105856.

The previous prime is 220434199. The next prime is 220434283. The reversal of 220434212 is 212434022.

It can be written as a sum of positive squares in 2 ways, for example, as 101929216 + 118504996 = 10096^2 + 10886^2 .

It is a super-4 number, since 4×220434212⁴ (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23273 + ... + 31344.

It is an arithmetic number, because the mean of its divisors is an integer number (32179105).

Almost surely, 2^220434212 is an apocalyptic number.

It is an amenable number.

220434212 is a deficient number, since it is larger than the sum of its proper divisors (165715048).

220434212 is a wasteful number, since it uses less digits than its factorization.

220434212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55630 (or 55628 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 220434212 is about 14847.0270424755. The cubic root of 220434212 is about 604.0779726246.

Adding to 220434212 its reverse (212434022), we get a palindrome (432868234).

The spelling of 220434212 in words is "two hundred twenty million, four hundred thirty-four thousand, two hundred twelve".