112221122201221 has 8 divisors (see below), whose sum is σ = 123506432158464. Its totient is φ = 101116377203520.

The previous prime is 112221122201173. The next prime is 112221122201273. The reversal of 112221122201221 is 122102221122211.

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 112221122201221 - 2¹³ = 112221122193029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112221122201192 and 112221122201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221122201291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45141238581 + ... + 45141241066.

It is an arithmetic number, because the mean of its divisors is an integer number (15438304019808).

Almost surely, 2^{112221122201221} is an apocalyptic number.

112221122201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112221122201221 is a deficient number, since it is larger than the sum of its proper divisors (11285309957243).

112221122201221 is a wasteful number, since it uses less digits than its factorization.

112221122201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90282479771.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 112221122201221 its reverse (122102221122211), we get a palindrome (234323343323432).

The spelling of 112221122201221 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-one".