212030211611 has 2 divisors, whose sum is σ = 212030211612. Its totient is φ = 212030211610.

The previous prime is 212030211593. The next prime is 212030211623. The reversal of 212030211611 is 116112030212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212030211611 is a prime.

It is not a weakly prime, because it can be changed into another prime (212030211671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106015105805 + 106015105806.

It is an arithmetic number, because the mean of its divisors is an integer number (106015105806).

Almost surely, 2^212030211611 is an apocalyptic number.

212030211611 is a deficient number, since it is larger than the sum of its proper divisors (1).

212030211611 is an equidigital number, since it uses as much as digits as its factorization.

212030211611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 212030211611 its reverse (116112030212), we get a palindrome (328142241823).

The spelling of 212030211611 in words is "two hundred twelve billion, thirty million, two hundred eleven thousand, six hundred eleven".