220221210110221 has 8 divisors (see below), whose sum is σ = 236459559489984. Its totient is φ = 204347767458240.

The previous prime is 220221210110203. The next prime is 220221210110227. The reversal of 220221210110221 is 122011012122022.

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

It is a cyclic number.

It is not a de Polignac number, because 220221210110221 - 2⁵ = 220221210110189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221210110227) 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, 91226680695 + ... + 91226683108.

It is an arithmetic number, because the mean of its divisors is an integer number (29557444936248).

Almost surely, 2^{220221210110221} is an apocalyptic number.

It is an amenable number.

220221210110221 is a deficient number, since it is larger than the sum of its proper divisors (16238349379763).

220221210110221 is a wasteful number, since it uses less digits than its factorization.

220221210110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182453363891.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220221210110221 its reverse (122011012122022), we get a palindrome (342232222232243).

The spelling of 220221210110221 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred ten million, one hundred ten thousand, two hundred twenty-one".