211020212221222 has 16 divisors (see below), whose sum is σ = 317494572595200. Its totient is φ = 105188704026120.

The previous prime is 211020212221211. The next prime is 211020212221243. The reversal of 211020212221222 is 222122212020112.

It is a junction number, because it is equal to n+sod(n) for n = 211020212221193 and 211020212221202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22525179 + ... + 30486457.

It is an arithmetic number, because the mean of its divisors is an integer number (19843410787200).

Almost surely, 2^{211020212221222} is an apocalyptic number.

211020212221222 is a deficient number, since it is larger than the sum of its proper divisors (106474360373978).

211020212221222 is a wasteful number, since it uses less digits than its factorization.

211020212221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001651.

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

Adding to 211020212221222 its reverse (222122212020112), we get a palindrome (433142424241334).

The spelling of 211020212221222 in words is "two hundred eleven trillion, twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".