12221101021201 has 4 divisors (see below), whose sum is σ = 12481124447232. Its totient is φ = 11961077595172.

The previous prime is 12221101021193. The next prime is 12221101021277. The reversal of 12221101021201 is 10212010112221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12221101021201 - 2³ = 12221101021193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221101091201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130011712945 + ... + 130011713038.

It is an arithmetic number, because the mean of its divisors is an integer number (3120281111808).

Almost surely, 2^{12221101021201} is an apocalyptic number.

It is an amenable number.

12221101021201 is a deficient number, since it is larger than the sum of its proper divisors (260023426031).

12221101021201 is an equidigital number, since it uses as much as digits as its factorization.

12221101021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260023426030.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221101021201 its reverse (10212010112221), we get a palindrome (22433111133422).

The spelling of 12221101021201 in words is "twelve trillion, two hundred twenty-one billion, one hundred one million, twenty-one thousand, two hundred one".