220220100221 has 16 divisors (see below), whose sum is σ = 240656270400. Its totient is φ = 199853579520.

The previous prime is 220220100187. The next prime is 220220100227. The reversal of 220220100221 is 122001022022.

It is a cyclic number.

It is not a de Polignac number, because 220220100221 - 2¹⁸ = 220219838077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220220100196 and 220220100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220100227) 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, 18924821 + ... + 18936453.

It is an arithmetic number, because the mean of its divisors is an integer number (15041016900).

Almost surely, 2^220220100221 is an apocalyptic number.

It is an amenable number.

220220100221 is a deficient number, since it is larger than the sum of its proper divisors (20436170179).

220220100221 is a wasteful number, since it uses less digits than its factorization.

220220100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14476.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220220100221 its reverse (122001022022), we get a palindrome (342221122243).

The spelling of 220220100221 in words is "two hundred twenty billion, two hundred twenty million, one hundred thousand, two hundred twenty-one".