22021115206 has 16 divisors (see below), whose sum is σ = 34986281616. Its totient is φ = 10359449856.

The previous prime is 22021115201. The next prime is 22021115213. The reversal of 22021115206 is 60251112022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021115201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311 + ... + 209866.

It is an arithmetic number, because the mean of its divisors is an integer number (2186642601).

Almost surely, 2^22021115206 is an apocalyptic number.

22021115206 is a deficient number, since it is larger than the sum of its proper divisors (12965166410).

22021115206 is a wasteful number, since it uses less digits than its factorization.

22021115206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214263.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 22021115206 its reverse (60251112022), we get a palindrome (82272227228).

The spelling of 22021115206 in words is "twenty-two billion, twenty-one million, one hundred fifteen thousand, two hundred six".