220389852312 has 144 divisors (see below), whose sum is σ = 701082804240. Its totient is φ = 62357081472.

The previous prime is 220389852257. The next prime is 220389852313. The reversal of 220389852312 is 213258983022.

220389852312 is a `hidden beast` number, since 2 + 2 + 0 + 38 + 98 + 523 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220389852313) 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 in 35 ways as a sum of consecutive naturals, for example, 60138 + ... + 666630.

It is an arithmetic number, because the mean of its divisors is an integer number (4868630585).

Almost surely, 2^220389852312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220389852312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350541402120).

220389852312 is an abundant number, since it is smaller than the sum of its proper divisors (480692951928).

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

220389852312 is a wasteful number, since it uses less digits than its factorization.

220389852312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606622 (or 606608 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

It can be divided in two parts, 220389 and 852312, that added together give a palindrome (1072701).

The spelling of 220389852312 in words is "two hundred twenty billion, three hundred eighty-nine million, eight hundred fifty-two thousand, three hundred twelve".