220000285812 has 48 divisors (see below), whose sum is σ = 515320565760. Its totient is φ = 73050154848.

The previous prime is 220000285793. The next prime is 220000285849. The reversal of 220000285812 is 218582000022.

220000285812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220000285812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3402093 + ... + 3466155.

It is an arithmetic number, because the mean of its divisors is an integer number (10735845120).

Almost surely, 2^220000285812 is an apocalyptic number.

It is an amenable number.

220000285812 is an abundant number, since it is smaller than the sum of its proper divisors (295320279948).

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

220000285812 is a wasteful number, since it uses less digits than its factorization.

220000285812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65172 (or 65170 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

Adding to 220000285812 its reverse (218582000022), we get a palindrome (438582285834).

The spelling of 220000285812 in words is "two hundred twenty billion, two hundred eighty-five thousand, eight hundred twelve".