212101100222 has 8 divisors (see below), whose sum is σ = 347074527672. Its totient is φ = 96409591000.

The previous prime is 212101100209. The next prime is 212101100227. The reversal of 212101100222 is 222001101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212101100197 and 212101100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101100227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4820479529 + ... + 4820479572.

It is an arithmetic number, because the mean of its divisors is an integer number (43384315959).

Almost surely, 2^212101100222 is an apocalyptic number.

212101100222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212101100222 is a deficient number, since it is larger than the sum of its proper divisors (134973427450).

212101100222 is a wasteful number, since it uses less digits than its factorization.

212101100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9640959114.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212101100222 its reverse (222001101212), we get a palindrome (434102201434).

The spelling of 212101100222 in words is "two hundred twelve billion, one hundred one million, one hundred thousand, two hundred twenty-two".