220201021105 has 16 divisors (see below), whose sum is σ = 289232519184. Its totient is φ = 159944244480.

The previous prime is 220201021013. The next prime is 220201021109. The reversal of 220201021105 is 501120102022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 128530137121 + 91670883984 = 358511^2 + 302772^2 .

It is not a de Polignac number, because 220201021105 - 2⁹ = 220201020593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220201021109) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27764134 + ... + 27772063.

It is an arithmetic number, because the mean of its divisors is an integer number (18077032449).

Almost surely, 2^220201021105 is an apocalyptic number.

It is an amenable number.

220201021105 is a deficient number, since it is larger than the sum of its proper divisors (69031498079).

220201021105 is a wasteful number, since it uses less digits than its factorization.

220201021105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55536276.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 220201021105 its reverse (501120102022), we get a palindrome (721321123127).

The spelling of 220201021105 in words is "two hundred twenty billion, two hundred one million, twenty-one thousand, one hundred five".