112120221000001 has 2 divisors, whose sum is σ = 112120221000002. Its totient is φ = 112120221000000.

The previous prime is 112120220999939. The next prime is 112120221000013. The reversal of 112120221000001 is 100000122021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93148054952976 + 18972166047025 = 9651324^2 + 4355705^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120221000001 - 2¹⁹ = 112120220475713 is a prime.

It is not a weakly prime, because it can be changed into another prime (112120221000041) 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 as a sum of consecutive naturals, namely, 56060110500000 + 56060110500001.

It is an arithmetic number, because the mean of its divisors is an integer number (56060110500001).

Almost surely, 2^{112120221000001} is an apocalyptic number.

It is an amenable number.

112120221000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120221000001 is an equidigital number, since it uses as much as digits as its factorization.

112120221000001 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 13.

Adding to 112120221000001 its reverse (100000122021211), we get a palindrome (212120343021212).

The spelling of 112120221000001 in words is "one hundred twelve trillion, one hundred twenty billion, two hundred twenty-one million, one", and thus it is an aban number.