221413106 has 32 divisors (see below), whose sum is σ = 352123200. Its totient is φ = 104279616.

The previous prime is 221413097. The next prime is 221413123. The reversal of 221413106 is 601314122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473885 + ... + 474351.

It is an arithmetic number, because the mean of its divisors is an integer number (11003850).

Almost surely, 2^221413106 is an apocalyptic number.

221413106 is a deficient number, since it is larger than the sum of its proper divisors (130710094).

221413106 is a wasteful number, since it uses less digits than its factorization.

221413106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 221413106 is about 14879.9565187537. The cubic root of 221413106 is about 604.9708393841.

Adding to 221413106 its reverse (601314122), we get a palindrome (822727228).

The spelling of 221413106 in words is "two hundred twenty-one million, four hundred thirteen thousand, one hundred six".