220011021200 has 30 divisors (see below), whose sum is σ = 528576479394. Its totient is φ = 88004408320.

The previous prime is 220011021193. The next prime is 220011021203. The reversal of 220011021200 is 2120110022.

It is a happy number.

220011021200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2291728384 + 217719292816 = 47872^2 + 466604^2 .

It is not an unprimeable number, because it can be changed into a prime (220011021203) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 275013377 + ... + 275014176.

Almost surely, 2^220011021200 is an apocalyptic number.

220011021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220011021200 is an abundant number, since it is smaller than the sum of its proper divisors (308565458194).

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

220011021200 is a wasteful number, since it uses less digits than its factorization.

220011021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550027571 (or 550027560 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220011021200 its reverse (2120110022), we get a palindrome (222131131222).

The spelling of 220011021200 in words is "two hundred twenty billion, eleven million, twenty-one thousand, two hundred".