220221100112 has 80 divisors (see below), whose sum is σ = 460873158480. Its totient is φ = 101337317376.

The previous prime is 220221100111. The next prime is 220221100129. The reversal of 220221100112 is 211001122022.

It can be written as a sum of positive squares in 8 ways, for example, as 1548894736 + 218672205376 = 39356^2 + 467624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221100111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184593788 + ... + 184594980.

It is an arithmetic number, because the mean of its divisors is an integer number (5760914481).

Almost surely, 2^220221100112 is an apocalyptic number.

It is an amenable number.

220221100112 is an abundant number, since it is smaller than the sum of its proper divisors (240652058368).

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

220221100112 is a wasteful number, since it uses less digits than its factorization.

220221100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3114 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220221100112 its reverse (211001122022), we get a palindrome (431222222134).

The spelling of 220221100112 in words is "two hundred twenty billion, two hundred twenty-one million, one hundred thousand, one hundred twelve".