112221122209 has 4 divisors (see below), whose sum is σ = 128252711104. Its totient is φ = 96189533316.

The previous prime is 112221122171. The next prime is 112221122287. The reversal of 112221122209 is 902221122211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 902221122211 = 848599 ⋅1063189.

It is a cyclic number.

It is not a de Polignac number, because 112221122209 - 2⁹ = 112221121697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112221122809) 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 3 ways as a sum of consecutive naturals, for example, 8015794437 + ... + 8015794450.

It is an arithmetic number, because the mean of its divisors is an integer number (32063177776).

Almost surely, 2^112221122209 is an apocalyptic number.

It is an amenable number.

112221122209 is a deficient number, since it is larger than the sum of its proper divisors (16031588895).

112221122209 is an equidigital number, since it uses as much as digits as its factorization.

112221122209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16031588894.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 112221122209 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred nine".