211102111001 has 2 divisors, whose sum is σ = 211102111002. Its totient is φ = 211102111000.

The previous prime is 211102110991. The next prime is 211102111021. The reversal of 211102111001 is 100111201112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203108856976 + 7993254025 = 450676^2 + 89405^2 .

It is a cyclic number.

It is not a de Polignac number, because 211102111001 - 2¹⁸ = 211101848857 is a prime.

It is not a weakly prime, because it can be changed into another prime (211102111021) 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, 105551055500 + 105551055501.

It is an arithmetic number, because the mean of its divisors is an integer number (105551055501).

Almost surely, 2^211102111001 is an apocalyptic number.

It is an amenable number.

211102111001 is a deficient number, since it is larger than the sum of its proper divisors (1).

211102111001 is an equidigital number, since it uses as much as digits as its factorization.

211102111001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211102111001 its reverse (100111201112), we get a palindrome (311213312113).

The spelling of 211102111001 in words is "two hundred eleven billion, one hundred two million, one hundred eleven thousand, one".