112111101121221 has 48 divisors (see below), whose sum is σ = 168501954042240. Its totient is φ = 71766367908480.

The previous prime is 112111101121219. The next prime is 112111101121259. The reversal of 112111101121221 is 122121101111211.

112111101121221 is a `hidden beast` number, since 1 + 1 + 211 + 110 + 1 + 121 + 221 = 666.

It is not a de Polignac number, because 112111101121221 - 2¹ = 112111101121219 is a prime.

It is a super-2 number, since 2×112111101121221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112111101121194 and 112111101121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111101131221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23193351 + ... + 27607131.

It is an arithmetic number, because the mean of its divisors is an integer number (3510457375880).

Almost surely, 2^{112111101121221} is an apocalyptic number.

It is an amenable number.

112111101121221 is a deficient number, since it is larger than the sum of its proper divisors (56390852921019).

112111101121221 is a wasteful number, since it uses less digits than its factorization.

112111101121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414826 (or 4414823 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 112111101121221 its reverse (122121101111211), we get a palindrome (234232202232432).

The spelling of 112111101121221 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-one".