21222312022022 has 8 divisors (see below), whose sum is σ = 31833493887072. Its totient is φ = 10611147393000.

The previous prime is 21222312022019. The next prime is 21222312022033. The reversal of 21222312022022 is 22022021322212.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588254 + ... + 6541457.

It is an arithmetic number, because the mean of its divisors is an integer number (3979186735884).

Almost surely, 2^{21222312022022} is an apocalyptic number.

21222312022022 is a deficient number, since it is larger than the sum of its proper divisors (10611181865050).

21222312022022 is a wasteful number, since it uses less digits than its factorization.

21222312022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8618014.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 21222312022022 its reverse (22022021322212), we get a palindrome (43244333344234).

The spelling of 21222312022022 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred twelve million, twenty-two thousand, twenty-two".