112121011186 has 4 divisors (see below), whose sum is σ = 168181516782. Its totient is φ = 56060505592.

The previous prime is 112121011159. The next prime is 112121011187. The reversal of 112121011186 is 681110121211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97809435025 + 14311576161 = 312745^2 + 119631^2 .

It is a super-2 number, since 2×112121011186² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112121011186.

It is not an unprimeable number, because it can be changed into a prime (112121011187) 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, 28030252795 + ... + 28030252798.

Almost surely, 2^112121011186 is an apocalyptic number.

112121011186 is a deficient number, since it is larger than the sum of its proper divisors (56060505596).

112121011186 is an equidigital number, since it uses as much as digits as its factorization.

112121011186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56060505595.

The product of its (nonzero) digits is 192, while the sum is 25.

Adding to 112121011186 its reverse (681110121211), we get a palindrome (793231132397).

The spelling of 112121011186 in words is "one hundred twelve billion, one hundred twenty-one million, eleven thousand, one hundred eighty-six".