210211101101 has 2 divisors, whose sum is σ = 210211101102. Its totient is φ = 210211101100.

The previous prime is 210211101077. The next prime is 210211101143. The reversal of 210211101101 is 101101112012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208733851876 + 1477249225 = 456874^2 + 38435^2 .

It is a cyclic number.

It is not a de Polignac number, because 210211101101 - 2²² = 210206906797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210211101301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105550550 + 105105550551.

It is an arithmetic number, because the mean of its divisors is an integer number (105105550551).

Almost surely, 2^210211101101 is an apocalyptic number.

It is an amenable number.

210211101101 is a deficient number, since it is larger than the sum of its proper divisors (1).

210211101101 is an equidigital number, since it uses as much as digits as its factorization.

210211101101 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 210211101101 its reverse (101101112012), we get a palindrome (311312213113).

The spelling of 210211101101 in words is "two hundred ten billion, two hundred eleven million, one hundred one thousand, one hundred one".