20211202112222 has 16 divisors (see below), whose sum is σ = 33538691343744. Its totient is φ = 9057516951000.

The previous prime is 20211202112219. The next prime is 20211202112243. The reversal of 20211202112222 is 22221120211202.

It is a junction number, because it is equal to n+sod(n) for n = 20211202112194 and 20211202112203.

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 7 ways as a sum of consecutive naturals, for example, 6469653404 + ... + 6469656527.

It is an arithmetic number, because the mean of its divisors is an integer number (2096168208984).

Almost surely, 2^{20211202112222} is an apocalyptic number.

20211202112222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20211202112222 is a deficient number, since it is larger than the sum of its proper divisors (13327489231522).

20211202112222 is a wasteful number, since it uses less digits than its factorization.

20211202112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12939310015.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20211202112222 its reverse (22221120211202), we get a palindrome (42432322323424).

The spelling of 20211202112222 in words is "twenty trillion, two hundred eleven billion, two hundred two million, one hundred twelve thousand, two hundred twenty-two".