21022122110222 has 8 divisors (see below), whose sum is σ = 31534130577456. Its totient is φ = 10510745251072.

The previous prime is 21022122110183. The next prime is 21022122110237. The reversal of 21022122110222 is 22201122122012.

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 = 21022122110194 and 21022122110203.

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, 157818803 + ... + 157951950.

It is an arithmetic number, because the mean of its divisors is an integer number (3941766322182).

Almost surely, 2^{21022122110222} is an apocalyptic number.

21022122110222 is a deficient number, since it is larger than the sum of its proper divisors (10512008467234).

21022122110222 is a wasteful number, since it uses less digits than its factorization.

21022122110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315804042.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21022122110222 its reverse (22201122122012), we get a palindrome (43223244232234).

The spelling of 21022122110222 in words is "twenty-one trillion, twenty-two billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-two".