211221322330222 has 16 divisors (see below), whose sum is σ = 318054338062560. Its totient is φ = 105203254264992.

The previous prime is 211221322330199. The next prime is 211221322330237. The reversal of 211221322330222 is 222033223122112.

It is a super-2 number, since 2×211221322330222² (a number of 29 digits) contains 22 as substring.

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, 1671597 + ... + 20621272.

It is an arithmetic number, because the mean of its divisors is an integer number (19878396128910).

Almost surely, 2^{211221322330222} is an apocalyptic number.

211221322330222 is a deficient number, since it is larger than the sum of its proper divisors (106833015732338).

211221322330222 is a wasteful number, since it uses less digits than its factorization.

211221322330222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22311147.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 211221322330222 its reverse (222033223122112), we get a palindrome (433254545452334).

The spelling of 211221322330222 in words is "two hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, three hundred thirty thousand, two hundred twenty-two".