112011221222221 has 16 divisors (see below), whose sum is σ = 121372902750528. Its totient is φ = 102958218720000.

The previous prime is 112011221222209. The next prime is 112011221222267. The reversal of 112011221222221 is 122222122110211.

It is a cyclic number.

It is not a de Polignac number, because 112011221222221 - 2⁴³ = 103215128200013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112011221222192 and 112011221222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011221222281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3180030 + ... + 15301471.

It is an arithmetic number, because the mean of its divisors is an integer number (7585806421908).

Almost surely, 2^{112011221222221} is an apocalyptic number.

It is an amenable number.

112011221222221 is a deficient number, since it is larger than the sum of its proper divisors (9361681528307).

112011221222221 is a wasteful number, since it uses less digits than its factorization.

112011221222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18489852.

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

Adding to 112011221222221 its reverse (122222122110211), we get a palindrome (234233343332432).

The spelling of 112011221222221 in words is "one hundred twelve trillion, eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-one".