12221110201 has 4 divisors (see below), whose sum is σ = 12221515152. Its totient is φ = 12220705252.

The previous prime is 12221110189. The next prime is 12221110243. The reversal of 12221110201 is 10201112221.

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 12221110201 - 2⁷ = 12221110073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221110271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153211 + ... + 218896.

It is an arithmetic number, because the mean of its divisors is an integer number (3055378788).

Almost surely, 2^12221110201 is an apocalyptic number.

It is an amenable number.

12221110201 is a deficient number, since it is larger than the sum of its proper divisors (404951).

12221110201 is an equidigital number, since it uses as much as digits as its factorization.

12221110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404950.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12221110201 its reverse (10201112221), we get a palindrome (22422222422).

The spelling of 12221110201 in words is "twelve billion, two hundred twenty-one million, one hundred ten thousand, two hundred one".