112221020221 has 2 divisors, whose sum is σ = 112221020222. Its totient is φ = 112221020220.

The previous prime is 112221020203. The next prime is 112221020251. The reversal of 112221020221 is 122020122211.

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., 104891776900 + 7329243321 = 323870^2 + 85611^2 .

It is a cyclic number.

It is not a de Polignac number, because 112221020221 - 2¹⁷ = 112220889149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112221020195 and 112221020204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112221020251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110510110 + 56110510111.

It is an arithmetic number, because the mean of its divisors is an integer number (56110510111).

Almost surely, 2^112221020221 is an apocalyptic number.

It is an amenable number.

112221020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221020221 is an equidigital number, since it uses as much as digits as its factorization.

112221020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112221020221 its reverse (122020122211), we get a palindrome (234241142432).

The spelling of 112221020221 in words is "one hundred twelve billion, two hundred twenty-one million, twenty thousand, two hundred twenty-one".