20201020222222 has 64 divisors (see below), whose sum is σ = 35711265254400. Its totient is φ = 8391536029440.

The previous prime is 20201020222169. The next prime is 20201020222261. The reversal of 20201020222222 is 22222202010202.

It is a self number, because there is not a number n which added to its sum of digits gives 20201020222222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191755279 + ... + 191860597.

It is an arithmetic number, because the mean of its divisors is an integer number (557988519600).

Almost surely, 2^{20201020222222} is an apocalyptic number.

20201020222222 is a deficient number, since it is larger than the sum of its proper divisors (15510245032178).

20201020222222 is a wasteful number, since it uses less digits than its factorization.

20201020222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108641.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 20201020222222 its reverse (22222202010202), we get a palindrome (42423222232424).

The spelling of 20201020222222 in words is "twenty trillion, two hundred one billion, twenty million, two hundred twenty-two thousand, two hundred twenty-two".