220340212 has 12 divisors (see below), whose sum is σ = 385699300. Its totient is φ = 110140416.

The previous prime is 220340209. The next prime is 220340227. The reversal of 220340212 is 212043022.

It can be written as a sum of positive squares in 2 ways, for example, as 132618256 + 87721956 = 11516^2 + 9366^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25414 + ... + 32962.

Almost surely, 2^220340212 is an apocalyptic number.

It is an amenable number.

220340212 is a deficient number, since it is larger than the sum of its proper divisors (165359088).

220340212 is a wasteful number, since it uses less digits than its factorization.

220340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14850 (or 14848 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220340212 is about 14843.8610880054. The cubic root of 220340212 is about 603.9920945415.

Adding to 220340212 its reverse (212043022), we get a palindrome (432383234).

The spelling of 220340212 in words is "two hundred twenty million, three hundred forty thousand, two hundred twelve".