20234221211 has 2 divisors, whose sum is σ = 20234221212. Its totient is φ = 20234221210.

The previous prime is 20234221129. The next prime is 20234221229. The reversal of 20234221211 is 11212243202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20234221211 - 2²⁶ = 20167112347 is a prime.

It is not a weakly prime, because it can be changed into another prime (20234221261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117110605 + 10117110606.

It is an arithmetic number, because the mean of its divisors is an integer number (10117110606).

Almost surely, 2^20234221211 is an apocalyptic number.

20234221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20234221211 is an equidigital number, since it uses as much as digits as its factorization.

20234221211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20234221211 its reverse (11212243202), we get a palindrome (31446464413).

The spelling of 20234221211 in words is "twenty billion, two hundred thirty-four million, two hundred twenty-one thousand, two hundred eleven".