201212102011 has 2 divisors, whose sum is σ = 201212102012. Its totient is φ = 201212102010.

The previous prime is 201212101939. The next prime is 201212102033. The reversal of 201212102011 is 110201212102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201212102011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201212101982 and 201212102000.

It is not a weakly prime, because it can be changed into another prime (201212102911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606051005 + 100606051006.

It is an arithmetic number, because the mean of its divisors is an integer number (100606051006).

Almost surely, 2^201212102011 is an apocalyptic number.

201212102011 is a deficient number, since it is larger than the sum of its proper divisors (1).

201212102011 is an equidigital number, since it uses as much as digits as its factorization.

201212102011 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 201212102011 its reverse (110201212102), we get a palindrome (311413314113).

The spelling of 201212102011 in words is "two hundred one billion, two hundred twelve million, one hundred two thousand, eleven".