12100221220211 has 8 divisors (see below), whose sum is σ = 12549747867648. Its totient is φ = 11654394381000.

The previous prime is 12100221220207. The next prime is 12100221220223. The reversal of 12100221220211 is 11202212200121.

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 12100221220211 - 2² = 12100221220207 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 12100221220211.

It is not an unprimeable number, because it can be changed into a prime (12100221220271) 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, 924945395 + ... + 924958476.

It is an arithmetic number, because the mean of its divisors is an integer number (1568718483456).

Almost surely, 2^{12100221220211} is an apocalyptic number.

12100221220211 is a deficient number, since it is larger than the sum of its proper divisors (449526647437).

12100221220211 is a wasteful number, since it uses less digits than its factorization.

12100221220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849904113.

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

Adding to 12100221220211 its reverse (11202212200121), we get a palindrome (23302433420332).

The spelling of 12100221220211 in words is "twelve trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred eleven".