211102103022121 has 4 divisors (see below), whose sum is σ = 212008120631892. Its totient is φ = 210196085412352.

The previous prime is 211102103022113. The next prime is 211102103022133. The reversal of 211102103022121 is 121220301201112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101042301920400 + 110059801101721 = 10051980^2 + 10490939^2 .

It is a cyclic number.

It is not a de Polignac number, because 211102103022121 - 2³ = 211102103022113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211102103022821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453008804536 + ... + 453008805001.

It is an arithmetic number, because the mean of its divisors is an integer number (53002030157973).

Almost surely, 2^{211102103022121} is an apocalyptic number.

It is an amenable number.

211102103022121 is a deficient number, since it is larger than the sum of its proper divisors (906017609771).

211102103022121 is an equidigital number, since it uses as much as digits as its factorization.

211102103022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906017609770.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211102103022121 its reverse (121220301201112), we get a palindrome (332322404223233).

The spelling of 211102103022121 in words is "two hundred eleven trillion, one hundred two billion, one hundred three million, twenty-two thousand, one hundred twenty-one".