221313106 has 48 divisors (see below), whose sum is σ = 414865152. Its totient is φ = 87964800.

The previous prime is 221313101. The next prime is 221313133. The reversal of 221313106 is 601313122.

It is not an unprimeable number, because it can be changed into a prime (221313101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117351 + ... + 119221.

It is an arithmetic number, because the mean of its divisors is an integer number (8643024).

Almost surely, 2^221313106 is an apocalyptic number.

221313106 is a deficient number, since it is larger than the sum of its proper divisors (193552046).

221313106 is a wasteful number, since it uses less digits than its factorization.

221313106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 221313106 is about 14876.5959143885. The cubic root of 221313106 is about 604.8797484289.

Adding to 221313106 its reverse (601313122), we get a palindrome (822626228).

The spelling of 221313106 in words is "two hundred twenty-one million, three hundred thirteen thousand, one hundred six".