112121121 has 8 divisors (see below), whose sum is σ = 170851264. Its totient is φ = 64069200.

The previous prime is 112121117. The next prime is 112121143. The reversal of 112121121 is 121121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112121121 - 2² = 112121117 is a prime.

It is a super-2 number, since 2×112121121² = 25142291548593282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121097 and 112121106.

It is not an unprimeable number, because it can be changed into a prime (112121161) 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, 2669530 + ... + 2669571.

It is an arithmetic number, because the mean of its divisors is an integer number (21356408).

Almost surely, 2^112121121 is an apocalyptic number.

It is an amenable number.

112121121 is a deficient number, since it is larger than the sum of its proper divisors (58730143).

112121121 is an equidigital number, since it uses as much as digits as its factorization.

112121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339111.

The product of its digits is 8, while the sum is 12.

The square root of 112121121 is about 10588.7261273488. The cubic root of 112121121 is about 482.2021514503.

Adding to 112121121 its reverse (121121211), we get a palindrome (233242332).

The spelling of 112121121 in words is "one hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".