112021222021 has 2 divisors, whose sum is σ = 112021222022. Its totient is φ = 112021222020.

The previous prime is 112021222009. The next prime is 112021222129. The reversal of 112021222021 is 120222120211.

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., 73511476900 + 38509745121 = 271130^2 + 196239^2 .

It is an emirp because it is prime and its reverse (120222120211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112021222021 - 2⁵ = 112021221989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112021221986 and 112021222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112021222921) 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, 56010611010 + 56010611011.

It is an arithmetic number, because the mean of its divisors is an integer number (56010611011).

Almost surely, 2^112021222021 is an apocalyptic number.

It is an amenable number.

112021222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112021222021 is an equidigital number, since it uses as much as digits as its factorization.

112021222021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 112021222021 its reverse (120222120211), we get a palindrome (232243342232).

The spelling of 112021222021 in words is "one hundred twelve billion, twenty-one million, two hundred twenty-two thousand, twenty-one".