112120121 has 8 divisors (see below), whose sum is σ = 118198080. Its totient is φ = 106059888.

The previous prime is 112120111. The next prime is 112120139. The reversal of 112120121 is 121021211.

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

It is a cyclic number.

It is not a de Polignac number, because 112120121 - 2¹⁴ = 112103737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112120111) 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, 9755 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (14774760).

Almost surely, 2^112120121 is an apocalyptic number.

It is an amenable number.

112120121 is a deficient number, since it is larger than the sum of its proper divisors (6077959).

112120121 is an equidigital number, since it uses as much as digits as its factorization.

112120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8863.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 112120121 is about 10588.6789072103. The cubic root of 112120121 is about 482.2007178710.

Adding to 112120121 its reverse (121021211), we get a palindrome (233141332).

The spelling of 112120121 in words is "one hundred twelve million, one hundred twenty thousand, one hundred twenty-one".