221011110106 has 16 divisors (see below), whose sum is σ = 332826923520. Its totient is φ = 110069586000.

The previous prime is 221011110083. The next prime is 221011110161. The reversal of 221011110106 is 601011110122.

It is a self number, because there is not a number n which added to its sum of digits gives 221011110106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370231 + ... + 760981.

It is an arithmetic number, because the mean of its divisors is an integer number (20801682720).

Almost surely, 2^221011110106 is an apocalyptic number.

221011110106 is a deficient number, since it is larger than the sum of its proper divisors (111815813414).

221011110106 is a wasteful number, since it uses less digits than its factorization.

221011110106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391869.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 221011110106 its sum of digits (16), we get a palindrome (221011110122).

Adding to 221011110106 its reverse (601011110122), we get a palindrome (822022220228).

The spelling of 221011110106 in words is "two hundred twenty-one billion, eleven million, one hundred ten thousand, one hundred six".