12201221211007 has 4 divisors (see below), whose sum is σ = 12236383232136. Its totient is φ = 12166059189880.

The previous prime is 12201221210953. The next prime is 12201221211029. The reversal of 12201221211007 is 70011212210221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12201221211007 - 2¹⁹ = 12201220686719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201221211077) 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, 17581010044 + ... + 17581010737.

It is an arithmetic number, because the mean of its divisors is an integer number (3059095808034).

Almost surely, 2^{12201221211007} is an apocalyptic number.

12201221211007 is a deficient number, since it is larger than the sum of its proper divisors (35162021129).

12201221211007 is an equidigital number, since it uses as much as digits as its factorization.

12201221211007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35162021128.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 12201221211007 its reverse (70011212210221), we get a palindrome (82212433421228).

The spelling of 12201221211007 in words is "twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred eleven thousand, seven".