212220112100222 has 16 divisors (see below), whose sum is σ = 319845094641744. Its totient is φ = 105605100216000.

The previous prime is 212220112100221. The next prime is 212220112100251. The reversal of 212220112100222 is 222001211022212.

It is a junction number, because it is equal to n+sod(n) for n = 212220112100194 and 212220112100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220112100221) by changing a digit.

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, 16809722 + ... + 26589602.

It is an arithmetic number, because the mean of its divisors is an integer number (19990318415109).

Almost surely, 2^{212220112100222} is an apocalyptic number.

212220112100222 is a deficient number, since it is larger than the sum of its proper divisors (107624982541522).

212220112100222 is a wasteful number, since it uses less digits than its factorization.

212220112100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831515.

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

Adding to 212220112100222 its reverse (222001211022212), we get a palindrome (434221323122434).

The spelling of 212220112100222 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred twelve million, one hundred thousand, two hundred twenty-two".