221106107 has 8 divisors (see below), whose sum is σ = 233501184. Its totient is φ = 208942888.

The previous prime is 221106101. The next prime is 221106133. The reversal of 221106107 is 701601122.

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 221106107 - 2⁴ = 221106091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221106101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56003 + ... + 59820.

It is an arithmetic number, because the mean of its divisors is an integer number (29187648).

Almost surely, 2^221106107 is an apocalyptic number.

221106107 is a deficient number, since it is larger than the sum of its proper divisors (12395077).

221106107 is a wasteful number, since it uses less digits than its factorization.

221106107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115929.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 221106107 is about 14869.6370836682. The cubic root of 221106107 is about 604.6911038389.

Adding to 221106107 its reverse (701601122), we get a palindrome (922707229).

The spelling of 221106107 in words is "two hundred twenty-one million, one hundred six thousand, one hundred seven".