12221330001 has 16 divisors (see below), whose sum is σ = 16427112000. Its totient is φ = 8081702208.

The previous prime is 12221329993. The next prime is 12221330003. The reversal of 12221330001 is 10003312221.

It is not a de Polignac number, because 12221330001 - 2³ = 12221329993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221330003) 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, 311835 + ... + 348831.

It is an arithmetic number, because the mean of its divisors is an integer number (1026694500).

Almost surely, 2^12221330001 is an apocalyptic number.

It is an amenable number.

12221330001 is a deficient number, since it is larger than the sum of its proper divisors (4205781999).

12221330001 is a wasteful number, since it uses less digits than its factorization.

12221330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37888.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12221330001 its reverse (10003312221), we get a palindrome (22224642222).

The spelling of 12221330001 in words is "twelve billion, two hundred twenty-one million, three hundred thirty thousand, one".