220020220221 has 16 divisors (see below), whose sum is σ = 296410028544. Its totient is φ = 145155538944.

The previous prime is 220020220141. The next prime is 220020220237. The reversal of 220020220221 is 122022020022.

220020220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220020220221 - 2⁷ = 220020220093 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220020220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020220421) 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 15 ways as a sum of consecutive naturals, for example, 4416765 + ... + 4466301.

It is an arithmetic number, because the mean of its divisors is an integer number (18525626784).

Almost surely, 2^220020220221 is an apocalyptic number.

It is an amenable number.

220020220221 is a deficient number, since it is larger than the sum of its proper divisors (76389808323).

220020220221 is a wasteful number, since it uses less digits than its factorization.

220020220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64900.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 220020220221 its reverse (122022020022), we get a palindrome (342042240243).

The spelling of 220020220221 in words is "two hundred twenty billion, twenty million, two hundred twenty thousand, two hundred twenty-one".