220102200100221 has 8 divisors (see below), whose sum is σ = 293469673848384. Its totient is φ = 146734763209440.

The previous prime is 220102200100219. The next prime is 220102200100259. The reversal of 220102200100221 is 122001002201022.

220102200100221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220102200100221 - 2¹ = 220102200100219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220102200100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220102200180221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11147841 + ... + 23758761.

It is an arithmetic number, because the mean of its divisors is an integer number (36683709231048).

Almost surely, 2^{220102200100221} is an apocalyptic number.

It is an amenable number.

220102200100221 is a deficient number, since it is larger than the sum of its proper divisors (73367473748163).

220102200100221 is a wasteful number, since it uses less digits than its factorization.

220102200100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18428691.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220102200100221 its reverse (122001002201022), we get a palindrome (342103202301243).

The spelling of 220102200100221 in words is "two hundred twenty trillion, one hundred two billion, two hundred million, one hundred thousand, two hundred twenty-one".