212102110001 has 2 divisors, whose sum is σ = 212102110002. Its totient is φ = 212102110000.

The previous prime is 212102109979. The next prime is 212102110097. The reversal of 212102110001 is 100011201212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181011957025 + 31090152976 = 425455^2 + 176324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212102110001 is a prime.

It is not a weakly prime, because it can be changed into another prime (212102110301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051055000 + 106051055001.

It is an arithmetic number, because the mean of its divisors is an integer number (106051055001).

Almost surely, 2^212102110001 is an apocalyptic number.

It is an amenable number.

212102110001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102110001 is an equidigital number, since it uses as much as digits as its factorization.

212102110001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212102110001 its reverse (100011201212), we get a palindrome (312113311213).

The spelling of 212102110001 in words is "two hundred twelve billion, one hundred two million, one hundred ten thousand, one".