221122110212122 has 320 divisors, whose sum is σ = 420450948403200. Its totient is φ = 86937461170560.

The previous prime is 221122110212083. The next prime is 221122110212167. The reversal of 221122110212122 is 221212011221122.

It is a junction number, because it is equal to n+sod(n) for n = 221122110212093 and 221122110212102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 127008678172 + ... + 127008679912.

It is an arithmetic number, because the mean of its divisors is an integer number (1313909213760).

Almost surely, 2^{221122110212122} is an apocalyptic number.

221122110212122 is a deficient number, since it is larger than the sum of its proper divisors (199328838191078).

221122110212122 is a wasteful number, since it uses less digits than its factorization.

221122110212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2178 counting only the distinct ones).

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

Adding to 221122110212122 its reverse (221212011221122), we get a palindrome (442334121433244).

The spelling of 221122110212122 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-two".