220201110112221 has 32 divisors (see below), whose sum is σ = 389037157969920. Its totient is φ = 120358370742192.

The previous prime is 220201110112187. The next prime is 220201110112223. The reversal of 220201110112221 is 122211011102022.

220201110112221 is a `hidden beast` number, since 2 + 20 + 201 + 110 + 112 + 221 = 666.

It is not a de Polignac number, because 220201110112221 - 2⁶ = 220201110112157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220201110112194 and 220201110112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201110112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25327935625 + ... + 25327944318.

It is an arithmetic number, because the mean of its divisors is an integer number (12157411186560).

Almost surely, 2^{220201110112221} is an apocalyptic number.

220201110112221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220201110112221 is a deficient number, since it is larger than the sum of its proper divisors (168836047857699).

220201110112221 is a wasteful number, since it uses less digits than its factorization.

220201110112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50655879982 (or 50655879976 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220201110112221 its reverse (122211011102022), we get a palindrome (342412121214243).

The spelling of 220201110112221 in words is "two hundred twenty trillion, two hundred one billion, one hundred ten million, one hundred twelve thousand, two hundred twenty-one".