1112120220209 has 2 divisors, whose sum is σ = 1112120220210. Its totient is φ = 1112120220208.

The previous prime is 1112120220191. The next prime is 1112120220241. The reversal of 1112120220209 is 9020220212111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1037169112225 + 74951107984 = 1018415^2 + 273772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112120220209 - 2³² = 1107825252913 is a prime.

It is a super-2 number, since 2×1112120220209² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1112120220259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556060110104 + 556060110105.

It is an arithmetic number, because the mean of its divisors is an integer number (556060110105).

Almost surely, 2^{1112120220209} is an apocalyptic number.

It is an amenable number.

1112120220209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112120220209 is an equidigital number, since it uses as much as digits as its factorization.

1112120220209 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 23.

The spelling of 1112120220209 in words is "one trillion, one hundred twelve billion, one hundred twenty million, two hundred twenty thousand, two hundred nine".