21222232000321 has 16 divisors (see below), whose sum is σ = 23271951545280. Its totient is φ = 19192587448320.

The previous prime is 21222232000313. The next prime is 21222232000327. The reversal of 21222232000321 is 12300023222212.

It is not a de Polignac number, because 21222232000321 - 2³ = 21222232000313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21222232000292 and 21222232000301.

It is not an unprimeable number, because it can be changed into a prime (21222232000327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185788201 + ... + 185902393.

It is an arithmetic number, because the mean of its divisors is an integer number (1454496971580).

Almost surely, 2^{21222232000321} is an apocalyptic number.

It is an amenable number.

21222232000321 is a deficient number, since it is larger than the sum of its proper divisors (2049719544959).

21222232000321 is a wasteful number, since it uses less digits than its factorization.

21222232000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201936.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21222232000321 its reverse (12300023222212), we get a palindrome (33522255222533).

The spelling of 21222232000321 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty-two million, three hundred twenty-one", and thus it is an aban number.