12020020211 has 2 divisors, whose sum is σ = 12020020212. Its totient is φ = 12020020210.

The previous prime is 12020020183. The next prime is 12020020219. The reversal of 12020020211 is 11202002021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12020020211 - 2⁶ = 12020020147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020020192 and 12020020201.

It is not a weakly prime, because it can be changed into another prime (12020020219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010010105 + 6010010106.

It is an arithmetic number, because the mean of its divisors is an integer number (6010010106).

Almost surely, 2^12020020211 is an apocalyptic number.

12020020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020020211 is an equidigital number, since it uses as much as digits as its factorization.

12020020211 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 11.

Adding to 12020020211 its reverse (11202002021), we get a palindrome (23222022232).

The spelling of 12020020211 in words is "twelve billion, twenty million, twenty thousand, two hundred eleven".