220445012 has 12 divisors (see below), whose sum is σ = 390427296. Its totient is φ = 108894360.

The previous prime is 220445003. The next prime is 220445021. The reversal of 220445012 is 210544022.

It is a happy number.

220445012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220445003) and next prime (220445021).

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, 331664 + ... + 332327.

It is an arithmetic number, because the mean of its divisors is an integer number (32535608).

Almost surely, 2^220445012 is an apocalyptic number.

It is an amenable number.

220445012 is a deficient number, since it is larger than the sum of its proper divisors (169982284).

220445012 is a wasteful number, since it uses less digits than its factorization.

220445012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664078 (or 664076 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 220445012 is about 14847.3907471986. The cubic root of 220445012 is about 604.0878379044.

Adding to 220445012 its reverse (210544022), we get a palindrome (430989034).

The spelling of 220445012 in words is "two hundred twenty million, four hundred forty-five thousand, twelve".