12212201221211 has 8 divisors (see below), whose sum is σ = 12556222381248. Its totient is φ = 11870378280000.

The previous prime is 12212201221193. The next prime is 12212201221331. The reversal of 12212201221211 is 11212210221221.

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 12212201221211 - 2⁶ = 12212201221147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212201221111) 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, 549543440 + ... + 549565661.

It is an arithmetic number, because the mean of its divisors is an integer number (1569527797656).

Almost surely, 2^{12212201221211} is an apocalyptic number.

12212201221211 is a deficient number, since it is larger than the sum of its proper divisors (344021160037).

12212201221211 is a wasteful number, since it uses less digits than its factorization.

12212201221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099109413.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212201221211 its reverse (11212210221221), we get a palindrome (23424411442432).

The spelling of 12212201221211 in words is "twelve trillion, two hundred twelve billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".