12022000321 has 4 divisors (see below), whose sum is σ = 12654737200. Its totient is φ = 11389263444.

The previous prime is 12022000267. The next prime is 12022000337. The reversal of 12022000321 is 12300022021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12300022021 = 7 ⋅1757146003.

It is a cyclic number.

It is not a de Polignac number, because 12022000321 - 2¹⁵ = 12021967553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12022000391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316368411 + ... + 316368448.

It is an arithmetic number, because the mean of its divisors is an integer number (3163684300).

Almost surely, 2^12022000321 is an apocalyptic number.

It is an amenable number.

12022000321 is a deficient number, since it is larger than the sum of its proper divisors (632736879).

12022000321 is an equidigital number, since it uses as much as digits as its factorization.

12022000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632736878.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12022000321 its reverse (12300022021), we get a palindrome (24322022342).

The spelling of 12022000321 in words is "twelve billion, twenty-two million, three hundred twenty-one", and thus it is an aban number.