211234020211 has 2 divisors, whose sum is σ = 211234020212. Its totient is φ = 211234020210.

The previous prime is 211234020191. The next prime is 211234020227. The reversal of 211234020211 is 112020432112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211234020211 - 2¹⁵ = 211233987443 is a prime.

It is a super-2 number, since 2×211234020211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211234020241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105617010105 + 105617010106.

It is an arithmetic number, because the mean of its divisors is an integer number (105617010106).

Almost surely, 2^211234020211 is an apocalyptic number.

211234020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

211234020211 is an equidigital number, since it uses as much as digits as its factorization.

211234020211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 211234020211 its reverse (112020432112), we get a palindrome (323254452323).

The spelling of 211234020211 in words is "two hundred eleven billion, two hundred thirty-four million, twenty thousand, two hundred eleven".