21200211022222 has 8 divisors (see below), whose sum is σ = 33182938991376. Its totient is φ = 10139231358432.

The previous prime is 21200211022157. The next prime is 21200211022229. The reversal of 21200211022222 is 22222011200212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21200211022222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200211022229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230437076283 + ... + 230437076374.

It is an arithmetic number, because the mean of its divisors is an integer number (4147867373922).

Almost surely, 2^{21200211022222} is an apocalyptic number.

21200211022222 is a deficient number, since it is larger than the sum of its proper divisors (11982727969154).

21200211022222 is a wasteful number, since it uses less digits than its factorization.

21200211022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460874152682.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21200211022222 its reverse (22222011200212), we get a palindrome (43422222222434).

The spelling of 21200211022222 in words is "twenty-one trillion, two hundred billion, two hundred eleven million, twenty-two thousand, two hundred twenty-two".