12222201201221 has 16 divisors (see below), whose sum is σ = 13916877815808. Its totient is φ = 10625053758000.

The previous prime is 12222201201109. The next prime is 12222201201247. The reversal of 12222201201221 is 12210210222221.

12222201201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12222201201221 - 2³⁰ = 12221127459397 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12222201201193 and 12222201201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222201201271) 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, 5784005 + ... + 7609146.

It is an arithmetic number, because the mean of its divisors is an integer number (869804863488).

Almost surely, 2^{12222201201221} is an apocalyptic number.

12222201201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222201201221 is a deficient number, since it is larger than the sum of its proper divisors (1694676614587).

12222201201221 is a wasteful number, since it uses less digits than its factorization.

12222201201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13396792.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12222201201221 its reverse (12210210222221), we get a palindrome (24432411423442).

The spelling of 12222201201221 in words is "twelve trillion, two hundred twenty-two billion, two hundred one million, two hundred one thousand, two hundred twenty-one".