112221112109 has 8 divisors (see below), whose sum is σ = 116137823160. Its totient is φ = 108307535616.

The previous prime is 112221112067. The next prime is 112221112117. The reversal of 112221112109 is 901211122211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23148709609 + 89072402500 = 152147^2 + 298450^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112221112109 - 2⁸ = 112221111853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221112169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710672 + ... + 854105.

It is an arithmetic number, because the mean of its divisors is an integer number (14517227895).

Almost surely, 2^112221112109 is an apocalyptic number.

It is an amenable number.

112221112109 is a deficient number, since it is larger than the sum of its proper divisors (3916711051).

112221112109 is a wasteful number, since it uses less digits than its factorization.

112221112109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567279.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 112221112109 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred nine".