112212120121009 has 2 divisors, whose sum is σ = 112212120121010. Its totient is φ = 112212120121008.

The previous prime is 112212120120979. The next prime is 112212120121051. The reversal of 112212120121009 is 900121021212211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97697963155984 + 14514156965025 = 9884228^2 + 3809745^2 .

It is a cyclic number.

It is not a de Polignac number, because 112212120121009 - 2²⁵ = 112212086566577 is a prime.

It is not a weakly prime, because it can be changed into another prime (112212120191009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56106060060504 + 56106060060505.

It is an arithmetic number, because the mean of its divisors is an integer number (56106060060505).

Almost surely, 2^{112212120121009} is an apocalyptic number.

It is an amenable number.

112212120121009 is a deficient number, since it is larger than the sum of its proper divisors (1).

112212120121009 is an equidigital number, since it uses as much as digits as its factorization.

112212120121009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 112212120121009 in words is "one hundred twelve trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, nine".