221112417 has 8 divisors (see below), whose sum is σ = 295089696. Its totient is φ = 147271712.

The previous prime is 221112413. The next prime is 221112427. The reversal of 221112417 is 714211122.

221112417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221112417 - 2² = 221112413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221112393 and 221112402.

It is not an unprimeable number, because it can be changed into a prime (221112413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30303 + ... + 36884.

It is an arithmetic number, because the mean of its divisors is an integer number (36886212).

Almost surely, 2^221112417 is an apocalyptic number.

It is an amenable number.

221112417 is a deficient number, since it is larger than the sum of its proper divisors (73977279).

221112417 is a wasteful number, since it uses less digits than its factorization.

221112417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68287.

The product of its digits is 224, while the sum is 21.

The square root of 221112417 is about 14869.8492594915. The cubic root of 221112417 is about 604.6968560765.

Adding to 221112417 its reverse (714211122), we get a palindrome (935323539).

The spelling of 221112417 in words is "two hundred twenty-one million, one hundred twelve thousand, four hundred seventeen".