12221020211011 has 4 divisors (see below), whose sum is σ = 12221033561800. Its totient is φ = 12221006860224.

The previous prime is 12221020210951. The next prime is 12221020211047. The reversal of 12221020211011 is 11011202012221.

12221020211011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221020211011 - 2²⁵ = 12220986656579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221000211011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5192526 + ... + 7169683.

It is an arithmetic number, because the mean of its divisors is an integer number (3055258390450).

Almost surely, 2^{12221020211011} is an apocalyptic number.

12221020211011 is a deficient number, since it is larger than the sum of its proper divisors (13350789).

12221020211011 is an equidigital number, since it uses as much as digits as its factorization.

12221020211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13350788.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221020211011 its reverse (11011202012221), we get a palindrome (23232222223232).

The spelling of 12221020211011 in words is "twelve trillion, two hundred twenty-one billion, twenty million, two hundred eleven thousand, eleven".