112121111018 has 16 divisors (see below), whose sum is σ = 192211918080. Its totient is φ = 48050829936.

The previous prime is 112121111017. The next prime is 112121111029. The reversal of 112121111018 is 810111121211.

112121111018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×112121111018² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112121111017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156028 + ... + 1249256.

It is an arithmetic number, because the mean of its divisors is an integer number (12013244880).

Almost surely, 2^112121111018 is an apocalyptic number.

112121111018 is a deficient number, since it is larger than the sum of its proper divisors (80090807062).

112121111018 is an equidigital number, since it uses as much as digits as its factorization.

112121111018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179141.

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 112121111018 its reverse (810111121211), we get a palindrome (922232232229).

The spelling of 112121111018 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, eighteen".