112021222112221 has 4 divisors (see below), whose sum is σ = 112151026541952. Its totient is φ = 111891417682492.

The previous prime is 112021222112207. The next prime is 112021222112227. The reversal of 112021222112221 is 122211222120211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112021222112221 - 2¹⁵ = 112021222079453 is a prime.

It is a super-2 number, since 2×112021222112221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112021222112192 and 112021222112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021222112227) 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 3 ways as a sum of consecutive naturals, for example, 64902213571 + ... + 64902215296.

It is an arithmetic number, because the mean of its divisors is an integer number (28037756635488).

Almost surely, 2^{112021222112221} is an apocalyptic number.

It is an amenable number.

112021222112221 is a deficient number, since it is larger than the sum of its proper divisors (129804429731).

112021222112221 is an equidigital number, since it uses as much as digits as its factorization.

112021222112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129804429730.

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

Adding to 112021222112221 its reverse (122211222120211), we get a palindrome (234232444232432).

The spelling of 112021222112221 in words is "one hundred twelve trillion, twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-one".