221022222110206 has 16 divisors (see below), whose sum is σ = 361827751917168. Its totient is φ = 100421583961600.

The previous prime is 221022222110197. The next prime is 221022222110231. The reversal of 221022222110206 is 602011222220122.

It is a congruent number.

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, 2153070115 + ... + 2153172766.

It is an arithmetic number, because the mean of its divisors is an integer number (22614234494823).

Almost surely, 2^{221022222110206} is an apocalyptic number.

221022222110206 is a deficient number, since it is larger than the sum of its proper divisors (140805529806962).

221022222110206 is a wasteful number, since it uses less digits than its factorization.

221022222110206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306245227.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 221022222110206 its reverse (602011222220122), we get a palindrome (823033444330328).

The spelling of 221022222110206 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-two million, one hundred ten thousand, two hundred six".