220031200000 has 108 divisors (see below), whose sum is σ = 548970488640. Its totient is φ = 88012160000.

The previous prime is 220031199989. The next prime is 220031200043. The reversal of 220031200000 is 2130022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 220031200000.

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, 662481 + ... + 937519.

It is an arithmetic number, because the mean of its divisors is an integer number (5083060080).

Almost surely, 2^220031200000 is an apocalyptic number.

220031200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220031200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274485244320).

220031200000 is an abundant number, since it is smaller than the sum of its proper divisors (328939288640).

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

220031200000 is an frugal number, since it uses more digits than its factorization.

220031200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275080 (or 275046 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 220031200000 its reverse (2130022), we get a palindrome (220033330022).

The spelling of 220031200000 in words is "two hundred twenty billion, thirty-one million, two hundred thousand".