12222321001 has 16 divisors (see below), whose sum is σ = 13627134720. Its totient is φ = 10866804480.

The previous prime is 12222320987. The next prime is 12222321011. The reversal of 12222321001 is 10012322221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12222321001 - 2¹⁵ = 12222288233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222321011) 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, 761875 + ... + 777751.

It is an arithmetic number, because the mean of its divisors is an integer number (851695920).

Almost surely, 2^12222321001 is an apocalyptic number.

12222321001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222321001 is a deficient number, since it is larger than the sum of its proper divisors (1404813719).

12222321001 is a wasteful number, since it uses less digits than its factorization.

12222321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17424.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12222321001 its reverse (10012322221), we get a palindrome (22234643222).

The spelling of 12222321001 in words is "twelve billion, two hundred twenty-two million, three hundred twenty-one thousand, one".