21210022102222 has 8 divisors (see below), whose sum is σ = 32841324545472. Its totient is φ = 10262913920400.

The previous prime is 21210022102219. The next prime is 21210022102249. The reversal of 21210022102222 is 22220122001212.

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 21210022102222.

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 3 ways as a sum of consecutive naturals, for example, 171048565279 + ... + 171048565402.

It is an arithmetic number, because the mean of its divisors is an integer number (4105165568184).

Almost surely, 2^{21210022102222} is an apocalyptic number.

21210022102222 is a deficient number, since it is larger than the sum of its proper divisors (11631302443250).

21210022102222 is a wasteful number, since it uses less digits than its factorization.

21210022102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342097130714.

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

Adding to 21210022102222 its reverse (22220122001212), we get a palindrome (43430144103434).

It can be divided in two parts, 2121002 and 2102222, that added together give a palindrome (4223224).

The spelling of 21210022102222 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, one hundred two thousand, two hundred twenty-two".