12212201100221 has 16 divisors (see below), whose sum is σ = 12761205268224. Its totient is φ = 11664708891264.

The previous prime is 12212201100181. The next prime is 12212201100223. The reversal of 12212201100221 is 12200110221221.

It is a cyclic number.

It is not a de Polignac number, because 12212201100221 - 2¹⁴ = 12212201083837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212201100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212201100223) 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, 62767136 + ... + 62961398.

It is an arithmetic number, because the mean of its divisors is an integer number (797575329264).

Almost surely, 2^{12212201100221} is an apocalyptic number.

It is an amenable number.

12212201100221 is a deficient number, since it is larger than the sum of its proper divisors (549004168003).

12212201100221 is a wasteful number, since it uses less digits than its factorization.

12212201100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198140.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212201100221 its reverse (12200110221221), we get a palindrome (24412311321442).

The spelling of 12212201100221 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred thousand, two hundred twenty-one".