220012112110221 has 20 divisors (see below), whose sum is σ = 328660479883164. Its totient is φ = 146674557907200.

The previous prime is 220012112110177. The next prime is 220012112110223. The reversal of 220012112110221 is 122011211210022.

220012112110221 is a `hidden beast` number, since 2 + 20 + 0 + 1 + 211 + 211 + 0 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 126228595522500 + 93783516587721 = 11235150^2 + 9684189^2 .

It is not a de Polignac number, because 220012112110221 - 2⁷ = 220012112110093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220012112110194 and 220012112110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012112110223) 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 19 ways as a sum of consecutive naturals, for example, 103108381 + ... + 105220541.

Almost surely, 2^{220012112110221} is an apocalyptic number.

It is an amenable number.

220012112110221 is a deficient number, since it is larger than the sum of its proper divisors (108648367772943).

220012112110221 is a wasteful number, since it uses less digits than its factorization.

220012112110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398154 (or 3398145 counting only the distinct ones).

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

Adding to 220012112110221 its reverse (122011211210022), we get a palindrome (342023323320243).

The spelling of 220012112110221 in words is "two hundred twenty trillion, twelve billion, one hundred twelve million, one hundred ten thousand, two hundred twenty-one".