220311103200 has 72 divisors (see below), whose sum is σ = 717112648728. Its totient is φ = 58749626880.

The previous prime is 220311103183. The next prime is 220311103249. The reversal of 220311103200 is 2301113022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220311103200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45895747 + ... + 45900546.

It is an arithmetic number, because the mean of its divisors is an integer number (9959897899).

Almost surely, 2^220311103200 is an apocalyptic number.

220311103200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220311103200 is an abundant number, since it is smaller than the sum of its proper divisors (496801545528).

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

220311103200 is a wasteful number, since it uses less digits than its factorization.

220311103200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91796316 (or 91796303 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 220311103200 its reverse (2301113022), we get a palindrome (222612216222).

The spelling of 220311103200 in words is "two hundred twenty billion, three hundred eleven million, one hundred three thousand, two hundred".