112120012122221 has 16 divisors (see below), whose sum is σ = 112904839319040. Its totient is φ = 111335750650800.

The previous prime is 112120012122007. The next prime is 112120012122247. The reversal of 112120012122221 is 122221210021211.

It is a cyclic number.

It is not a de Polignac number, because 112120012122221 - 2¹⁴ = 112120012105837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112120012122193 and 112120012122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120012422221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8481725150 + ... + 8481738368.

It is an arithmetic number, because the mean of its divisors is an integer number (7056552457440).

Almost surely, 2^{112120012122221} is an apocalyptic number.

It is an amenable number.

112120012122221 is a deficient number, since it is larger than the sum of its proper divisors (784827196819).

112120012122221 is a wasteful number, since it uses less digits than its factorization.

112120012122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30176.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 112120012122221 its reverse (122221210021211), we get a palindrome (234341222143432).

The spelling of 112120012122221 in words is "one hundred twelve trillion, one hundred twenty billion, twelve million, one hundred twenty-two thousand, two hundred twenty-one".