112021120221221 has 16 divisors (see below), whose sum is σ = 112228826866560. Its totient is φ = 111813604472640.

The previous prime is 112021120221163. The next prime is 112021120221239. The reversal of 112021120221221 is 122122021120211.

It is a cyclic number.

It is not a de Polignac number, because 112021120221221 - 2¹⁴ = 112021120204837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112021120221193 and 112021120221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021120221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17021896151 + ... + 17021902731.

It is an arithmetic number, because the mean of its divisors is an integer number (7014301679160).

Almost surely, 2^{112021120221221} is an apocalyptic number.

It is an amenable number.

112021120221221 is a deficient number, since it is larger than the sum of its proper divisors (207706645339).

112021120221221 is an equidigital number, since it uses as much as digits as its factorization.

112021120221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16684.

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

Adding to 112021120221221 its reverse (122122021120211), we get a palindrome (234143141341432).

The spelling of 112021120221221 in words is "one hundred twelve trillion, twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".