112021121222209 has 2 divisors, whose sum is σ = 112021121222210. Its totient is φ = 112021121222208.

The previous prime is 112021121222207. The next prime is 112021121222251. The reversal of 112021121222209 is 902222121120211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103212453378609 + 8808667843600 = 10159353^2 + 2967940^2 .

It is a cyclic number.

It is not a de Polignac number, because 112021121222209 - 2¹ = 112021121222207 is a prime.

Together with 112021121222207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112021121222207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56010560611104 + 56010560611105.

It is an arithmetic number, because the mean of its divisors is an integer number (56010560611105).

Almost surely, 2^{112021121222209} is an apocalyptic number.

It is an amenable number.

112021121222209 is a deficient number, since it is larger than the sum of its proper divisors (1).

112021121222209 is an equidigital number, since it uses as much as digits as its factorization.

112021121222209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 112021121222209 in words is "one hundred twelve trillion, twenty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred nine".