220245012 has 36 divisors (see below), whose sum is σ = 599557140. Its totient is φ = 67767552.

The previous prime is 220244957. The next prime is 220245029. The reversal of 220245012 is 210542022.

220245012 is a `hidden beast` number, since 2 + 202 + 450 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 147039876 = 8556^2 + 12126^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234837 + ... + 235772.

It is an arithmetic number, because the mean of its divisors is an integer number (16654365).

Almost surely, 2^220245012 is an apocalyptic number.

It is an amenable number.

220245012 is an abundant number, since it is smaller than the sum of its proper divisors (379312128).

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

220245012 is a wasteful number, since it uses less digits than its factorization.

220245012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470632 (or 470627 counting only the distinct ones).

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

The square root of 220245012 is about 14840.6540287145. The cubic root of 220245012 is about 603.9050952447.

Adding to 220245012 its reverse (210542022), we get a palindrome (430787034).

The spelling of 220245012 in words is "two hundred twenty million, two hundred forty-five thousand, twelve".