21222000111022 has 8 divisors (see below), whose sum is σ = 31838175441072. Its totient is φ = 10609274964000.

The previous prime is 21222000111017. The next prime is 21222000111031. The reversal of 21222000111022 is 22011100022212.

It is a happy number.

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 = 21222000110987 and 21222000111005.

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, 862530379 + ... + 862554982.

It is an arithmetic number, because the mean of its divisors is an integer number (3979771930134).

Almost surely, 2^{21222000111022} is an apocalyptic number.

21222000111022 is a deficient number, since it is larger than the sum of its proper divisors (10616175330050).

21222000111022 is a wasteful number, since it uses less digits than its factorization.

21222000111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725091514.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21222000111022 its reverse (22011100022212), we get a palindrome (43233100133234).

The spelling of 21222000111022 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred eleven thousand, twenty-two".