112122123121 has 8 divisors (see below), whose sum is σ = 114326743680. Its totient is φ = 109920802992.

The previous prime is 112122123067. The next prime is 112122123151. The reversal of 112122123121 is 121321221211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112122123121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112122123151) 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 in 7 ways as a sum of consecutive naturals, for example, 756441 + ... + 892438.

It is an arithmetic number, because the mean of its divisors is an integer number (14290842960).

Almost surely, 2^112122123121 is an apocalyptic number.

It is an amenable number.

112122123121 is a deficient number, since it is larger than the sum of its proper divisors (2204620559).

112122123121 is a wasteful number, since it uses less digits than its factorization.

112122123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650215.

The product of its digits is 96, while the sum is 19.

Adding to 112122123121 its reverse (121321221211), we get a palindrome (233443344332).

The spelling of 112122123121 in words is "one hundred twelve billion, one hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-one".