12221010001 has 8 divisors (see below), whose sum is σ = 12252188384. Its totient is φ = 12189864960.

The previous prime is 12221009981. The next prime is 12221010013. The reversal of 12221010001 is 10001012221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221010001 - 2⁷ = 12221009873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221010001.

It is not an unprimeable number, because it can be changed into a prime (12221011001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830161 + ... + 844753.

It is an arithmetic number, because the mean of its divisors is an integer number (1531523548).

Almost surely, 2^12221010001 is an apocalyptic number.

It is an amenable number.

12221010001 is a deficient number, since it is larger than the sum of its proper divisors (31178383).

12221010001 is a wasteful number, since it uses less digits than its factorization.

12221010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12221010001 its reverse (10001012221), we get a palindrome (22222022222).

The spelling of 12221010001 in words is "twelve billion, two hundred twenty-one million, ten thousand, one".