20010110220221 has 8 divisors (see below), whose sum is σ = 21829298556000. Its totient is φ = 18190936452240.

The previous prime is 20010110220197. The next prime is 20010110220227. The reversal of 20010110220221 is 12202201101002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010110220221 is a prime.

It is a super-2 number, since 2×20010110220221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010110220196 and 20010110220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010110220227) 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, 664031 + ... + 6360908.

It is an arithmetic number, because the mean of its divisors is an integer number (2728662319500).

Almost surely, 2^{20010110220221} is an apocalyptic number.

It is an amenable number.

20010110220221 is a deficient number, since it is larger than the sum of its proper divisors (1819188335779).

20010110220221 is a wasteful number, since it uses less digits than its factorization.

20010110220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283899.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20010110220221 its reverse (12202201101002), we get a palindrome (32212311321223).

The spelling of 20010110220221 in words is "twenty trillion, ten billion, one hundred ten million, two hundred twenty thousand, two hundred twenty-one".