20221210110221 has 8 divisors (see below), whose sum is σ = 20918704828800. Its totient is φ = 19523729499120.

The previous prime is 20221210110209. The next prime is 20221210110223. The reversal of 20221210110221 is 12201101212202.

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 20221210110221 - 2²⁶ = 20221143001357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221210110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221210110223) 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 7 ways as a sum of consecutive naturals, for example, 568625 + ... + 6384806.

It is an arithmetic number, because the mean of its divisors is an integer number (2614838103600).

Almost surely, 2^{20221210110221} is an apocalyptic number.

It is an amenable number.

20221210110221 is a deficient number, since it is larger than the sum of its proper divisors (697494718579).

20221210110221 is a wasteful number, since it uses less digits than its factorization.

20221210110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7053739.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20221210110221 its reverse (12201101212202), we get a palindrome (32422311322423).

The spelling of 20221210110221 in words is "twenty trillion, two hundred twenty-one billion, two hundred ten million, one hundred ten thousand, two hundred twenty-one".