21222030156622 has 8 divisors (see below), whose sum is σ = 31975794317376. Its totient is φ = 10563432050832.

The previous prime is 21222030156611. The next prime is 21222030156661. The reversal of 21222030156622 is 22665103022212.

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

It is a congruent number.

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, 23791513183 + ... + 23791514074.

It is an arithmetic number, because the mean of its divisors is an integer number (3996974289672).

Almost surely, 2^{21222030156622} is an apocalyptic number.

21222030156622 is a deficient number, since it is larger than the sum of its proper divisors (10753764160754).

21222030156622 is a wasteful number, since it uses less digits than its factorization.

21222030156622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47583027482.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 21222030156622 its reverse (22665103022212), we get a palindrome (43887133178834).

The spelling of 21222030156622 in words is "twenty-one trillion, two hundred twenty-two billion, thirty million, one hundred fifty-six thousand, six hundred twenty-two".