112020221 has 2 divisors, whose sum is σ = 112020222. Its totient is φ = 112020220.

The previous prime is 112020199. The next prime is 112020247. The reversal of 112020221 is 122020211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103754596 + 8265625 = 10186^2 + 2875^2 .

It is an emirp because it is prime and its reverse (122020211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112020221 - 2¹⁰ = 112019197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112020521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56010110 + 56010111.

It is an arithmetic number, because the mean of its divisors is an integer number (56010111).

Almost surely, 2^112020221 is an apocalyptic number.

It is an amenable number.

112020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112020221 is an equidigital number, since it uses as much as digits as its factorization.

112020221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 112020221 is about 10583.9605535924. The cubic root of 112020221 is about 482.0574603077.

Adding to 112020221 its reverse (122020211), we get a palindrome (234040432).

The spelling of 112020221 in words is "one hundred twelve million, twenty thousand, two hundred twenty-one".