220211110221 has 4 divisors (see below), whose sum is σ = 293614813632. Its totient is φ = 146807406812.

The previous prime is 220211110219. The next prime is 220211110253. The reversal of 220211110221 is 122011112022.

220211110221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220211110221 - 2¹ = 220211110219 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 220211110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211110321) 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 3 ways as a sum of consecutive naturals, for example, 36701851701 + ... + 36701851706.

It is an arithmetic number, because the mean of its divisors is an integer number (73403703408).

Almost surely, 2^220211110221 is an apocalyptic number.

It is an amenable number.

220211110221 is a deficient number, since it is larger than the sum of its proper divisors (73403703411).

220211110221 is an equidigital number, since it uses as much as digits as its factorization.

220211110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73403703410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220211110221 its reverse (122011112022), we get a palindrome (342222222243).

The spelling of 220211110221 in words is "two hundred twenty billion, two hundred eleven million, one hundred ten thousand, two hundred twenty-one".