12210221011 has 2 divisors, whose sum is σ = 12210221012. Its totient is φ = 12210221010.

The previous prime is 12210220993. The next prime is 12210221033. The reversal of 12210221011 is 11012201221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210221011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210220982 and 12210221000.

It is not a weakly prime, because it can be changed into another prime (12210201011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105110505 + 6105110506.

It is an arithmetic number, because the mean of its divisors is an integer number (6105110506).

Almost surely, 2^12210221011 is an apocalyptic number.

12210221011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210221011 is an equidigital number, since it uses as much as digits as its factorization.

12210221011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12210221011 its reverse (11012201221), we get a palindrome (23222422232).

The spelling of 12210221011 in words is "twelve billion, two hundred ten million, two hundred twenty-one thousand, eleven".