220346612 has 6 divisors (see below), whose sum is σ = 385606578. Its totient is φ = 110173304.

The previous prime is 220346603. The next prime is 220346617. The reversal of 220346612 is 216643022.

It can be written as a sum of positive squares in only one way, i.e., 117202276 + 103144336 = 10826^2 + 10156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220346617) by changing a digit.

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 as a sum of consecutive naturals, namely, 27543323 + ... + 27543330.

It is an arithmetic number, because the mean of its divisors is an integer number (64267763).

Almost surely, 2^220346612 is an apocalyptic number.

It is an amenable number.

220346612 is a deficient number, since it is larger than the sum of its proper divisors (165259966).

220346612 is a wasteful number, since it uses less digits than its factorization.

220346612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55086657 (or 55086655 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 220346612 is about 14844.0766637740. The cubic root of 220346612 is about 603.9979423347.

Adding to 220346612 its reverse (216643022), we get a palindrome (436989634).

The spelling of 220346612 in words is "two hundred twenty million, three hundred forty-six thousand, six hundred twelve".