112121111001 has 8 divisors (see below), whose sum is σ = 149518656064.
Its totient is φ = 74735486640.
The previous prime is 112121110921. The next prime is 112121111017. The reversal of 112121111001 is 100111121211.
Adding to 112121111001 its reverse (100111121211), we get a palindrome (212232232212).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 112121111001 - 219 = 112120586713 is a prime.
It is a super-2 number, since 2×1121211110012 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (112121112001) 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, 2958205 + ... + 2995866.
It is an arithmetic number, because the mean of its divisors is an integer number (18689832008).
Almost surely, 2112121111001 is an apocalyptic number.
It is an amenable number.
112121111001 is a deficient number, since it is larger than the sum of its proper divisors (37397545063).
112121111001 is an equidigital number, since it uses as much as digits as its factorization.
112121111001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5960351.
The product of its (nonzero) digits is 4, while the sum is 12.
The spelling of 112121111001 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one".