220110110201221 has 16 divisors (see below), whose sum is σ = 224157711571200. Its totient is φ = 216073287293248.

The previous prime is 220110110201167. The next prime is 220110110201237. The reversal of 220110110201221 is 122102011011022.

It is a cyclic number.

It is not a de Polignac number, because 220110110201221 - 2²¹ = 220110108104069 is a prime.

It is a super-2 number, since 2×220110110201221² (a number of 29 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 = 220110110201195 and 220110110201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110110204221) 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 15 ways as a sum of consecutive naturals, for example, 118345215 + ... + 120190723.

It is an arithmetic number, because the mean of its divisors is an integer number (14009856973200).

Almost surely, 2^{220110110201221} is an apocalyptic number.

It is an amenable number.

220110110201221 is a deficient number, since it is larger than the sum of its proper divisors (4047601369979).

220110110201221 is a wasteful number, since it uses less digits than its factorization.

220110110201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848428.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220110110201221 its reverse (122102011011022), we get a palindrome (342212121212243).

The spelling of 220110110201221 in words is "two hundred twenty trillion, one hundred ten billion, one hundred ten million, two hundred one thousand, two hundred twenty-one".