1112112101209 has 2 divisors, whose sum is σ = 1112112101210. Its totient is φ = 1112112101208.

The previous prime is 1112112101119. The next prime is 1112112101231. The reversal of 1112112101209 is 9021012112111.

It is a happy number.

It is an a-pointer prime, because the next prime (1112112101231) can be obtained adding 1112112101209 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885104640000 + 227007461209 = 940800^2 + 476453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112112101209 - 2¹³ = 1112112093017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112112101209.

It is not a weakly prime, because it can be changed into another prime (1112112101299) 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, 556056050604 + 556056050605.

It is an arithmetic number, because the mean of its divisors is an integer number (556056050605).

Almost surely, 2^{1112112101209} is an apocalyptic number.

It is an amenable number.

1112112101209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112112101209 is an equidigital number, since it uses as much as digits as its factorization.

1112112101209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1112112101209 in words is "one trillion, one hundred twelve billion, one hundred twelve million, one hundred one thousand, two hundred nine".