12221000133 has 16 divisors (see below), whose sum is σ = 16343972736. Its totient is φ = 8122720320.

The previous prime is 12221000111. The next prime is 12221000179. The reversal of 12221000133 is 33100012221.

It is not a de Polignac number, because 12221000133 - 2⁸ = 12220999877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221000333) 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, 1419903 + ... + 1428483.

It is an arithmetic number, because the mean of its divisors is an integer number (1021498296).

Almost surely, 2^12221000133 is an apocalyptic number.

It is an amenable number.

12221000133 is a deficient number, since it is larger than the sum of its proper divisors (4122972603).

12221000133 is an equidigital number, since it uses as much as digits as its factorization.

12221000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9964.

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

Adding to 12221000133 its reverse (33100012221), we get a palindrome (45321012354).

The spelling of 12221000133 in words is "twelve billion, two hundred twenty-one million, one hundred thirty-three", and thus it is an aban number.