21222021233122 has 8 divisors (see below), whose sum is σ = 31835956905936. Its totient is φ = 10610035597812.

The previous prime is 21222021233089. The next prime is 21222021233167. The reversal of 21222021233122 is 22133212022212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487482168 + ... + 487525699.

It is an arithmetic number, because the mean of its divisors is an integer number (3979494613242).

Almost surely, 2^{21222021233122} is an apocalyptic number.

21222021233122 is a deficient number, since it is larger than the sum of its proper divisors (10613935672814).

21222021233122 is a wasteful number, since it uses less digits than its factorization.

21222021233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975018752.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21222021233122 its reverse (22133212022212), we get a palindrome (43355233255334).

The spelling of 21222021233122 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-one million, two hundred thirty-three thousand, one hundred twenty-two".