212102200001011 has 4 divisors (see below), whose sum is σ = 212342406343912. Its totient is φ = 211861993658112.

The previous prime is 212102200000987. The next prime is 212102200001023. The reversal of 212102200001011 is 110100002201212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212102200001011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212102200000982 and 212102200001000.

It is not an unprimeable number, because it can be changed into a prime (212102200001051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120103170126 + ... + 120103171891.

It is an arithmetic number, because the mean of its divisors is an integer number (53085601585978).

Almost surely, 2^{212102200001011} is an apocalyptic number.

212102200001011 is a deficient number, since it is larger than the sum of its proper divisors (240206342901).

212102200001011 is an equidigital number, since it uses as much as digits as its factorization.

212102200001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240206342900.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212102200001011 its reverse (110100002201212), we get a palindrome (322202202202223).

The spelling of 212102200001011 in words is "two hundred twelve trillion, one hundred two billion, two hundred million, one thousand, eleven".