12021102220211 has 6 divisors (see below), whose sum is σ = 13983731154180. Its totient is φ = 10303801902996.

The previous prime is 12021102220199. The next prime is 12021102220217. The reversal of 12021102220211 is 11202220112021.

It is not a de Polignac number, because 12021102220211 - 2²⁶ = 12021035111347 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 12021102220211.

It is not an unprimeable number, because it can be changed into a prime (12021102220217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122664308321 + ... + 122664308418.

It is an arithmetic number, because the mean of its divisors is an integer number (2330621859030).

Almost surely, 2^{12021102220211} is an apocalyptic number.

12021102220211 is a deficient number, since it is larger than the sum of its proper divisors (1962628933969).

12021102220211 is an equidigital number, since it uses as much as digits as its factorization.

12021102220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245328616753 (or 245328616746 counting only the distinct ones).

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

Adding to 12021102220211 its reverse (11202220112021), we get a palindrome (23223322332232).

The spelling of 12021102220211 in words is "twelve trillion, twenty-one billion, one hundred two million, two hundred twenty thousand, two hundred eleven".