20211222112222 has 16 divisors (see below), whose sum is σ = 32417999829072. Its totient is φ = 9416993411200.

The previous prime is 20211222112217. The next prime is 20211222112243. The reversal of 20211222112222 is 22221122211202.

It is a junction number, because it is equal to n+sod(n) for n = 20211222112193 and 20211222112202.

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, 2942807008 + ... + 2942813875.

It is an arithmetic number, because the mean of its divisors is an integer number (2026124989317).

Almost surely, 2^{20211222112222} is an apocalyptic number.

20211222112222 is a deficient number, since it is larger than the sum of its proper divisors (12206777716850).

20211222112222 is a wasteful number, since it uses less digits than its factorization.

20211222112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885621003.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 20211222112222 its reverse (22221122211202), we get a palindrome (42432344323424).

The spelling of 20211222112222 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".