220110202210221 has 6 divisors (see below), whose sum is σ = 317936958748110. Its totient is φ = 146740134806808.

The previous prime is 220110202210201. The next prime is 220110202210247. The reversal of 220110202210221 is 122012202011022.

It is a happy number.

220110202210221 is a `hidden beast` number, since 2 + 20 + 1 + 10 + 202 + 210 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 218724133955625 + 1386068254596 = 14789325^2 + 1177314^2 .

It is not a de Polignac number, because 220110202210221 - 2²⁵ = 220110168655789 is a prime.

It is a super-2 number, since 2×220110202210221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220110202210194 and 220110202210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110202210201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12228344567226 + ... + 12228344567243.

It is an arithmetic number, because the mean of its divisors is an integer number (52989493124685).

Almost surely, 2^{220110202210221} is an apocalyptic number.

It is an amenable number.

220110202210221 is a deficient number, since it is larger than the sum of its proper divisors (97826756537889).

220110202210221 is a wasteful number, since it uses less digits than its factorization.

220110202210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24456689134475 (or 24456689134472 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220110202210221 its reverse (122012202011022), we get a palindrome (342122404221243).

The spelling of 220110202210221 in words is "two hundred twenty trillion, one hundred ten billion, two hundred two million, two hundred ten thousand, two hundred twenty-one".