112012212109 has 16 divisors (see below), whose sum is σ = 129919852800. Its totient is φ = 94588838784.

The previous prime is 112012212107. The next prime is 112012212113. The reversal of 112012212109 is 901212210211.

It is a cyclic number.

It is not a de Polignac number, because 112012212109 - 2¹ = 112012212107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112012212109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012212107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151969 + ... + 497110.

It is an arithmetic number, because the mean of its divisors is an integer number (8119990800).

Almost surely, 2^112012212109 is an apocalyptic number.

It is an amenable number.

112012212109 is a deficient number, since it is larger than the sum of its proper divisors (17907640691).

112012212109 is an equidigital number, since it uses as much as digits as its factorization.

112012212109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649452.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 112012212109 in words is "one hundred twelve billion, twelve million, two hundred twelve thousand, one hundred nine".