211210222110101 has 12 divisors (see below), whose sum is σ = 225965203313292. Its totient is φ = 197352882350784.

The previous prime is 211210222110091. The next prime is 211210222110169. The reversal of 211210222110101 is 101011222012112.

It can be written as a sum of positive squares in 2 ways, for example, as 101962050835876 + 109248171274225 = 10097626^2 + 10452185^2 .

It is not a de Polignac number, because 211210222110101 - 2¹⁸ = 211210221847957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211210222110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210222110191) 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 in 11 ways as a sum of consecutive naturals, for example, 4007301506 + ... + 4007354211.

It is an arithmetic number, because the mean of its divisors is an integer number (18830433609441).

Almost surely, 2^{211210222110101} is an apocalyptic number.

It is an amenable number.

211210222110101 is a deficient number, since it is larger than the sum of its proper divisors (14754981203191).

211210222110101 is an equidigital number, since it uses as much as digits as its factorization.

211210222110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014655828 (or 8014655809 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211210222110101 its reverse (101011222012112), we get a palindrome (312221444122213).

The spelling of 211210222110101 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-two million, one hundred ten thousand, one hundred one".