20222221122222 has 32 divisors (see below), whose sum is σ = 48231881436672. Its totient is φ = 5526569747424.

The previous prime is 20222221122157. The next prime is 20222221122241. The reversal of 20222221122222 is 22222112222202.

It is a junction number, because it is equal to n+sod(n) for n = 20222221122192 and 20222221122201.

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 15 ways as a sum of consecutive naturals, for example, 10466987193 + ... + 10466989124.

It is an arithmetic number, because the mean of its divisors is an integer number (1507246294896).

Almost surely, 2^{20222221122222} is an apocalyptic number.

20222221122222 is an abundant number, since it is smaller than the sum of its proper divisors (28009660314450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222221122222 is a wasteful number, since it uses less digits than its factorization.

20222221122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933976352.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20222221122222 its reverse (22222112222202), we get a palindrome (42444333344424).

The spelling of 20222221122222 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".