2212110212101 has 4 divisors (see below), whose sum is σ = 2212113409452. Its totient is φ = 2212107014752.

The previous prime is 2212110212099. The next prime is 2212110212119. The reversal of 2212110212101 is 1012120112122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1533513199201 + 678597012900 = 1238351^2 + 823770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212110212101 - 2¹ = 2212110212099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212110212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79990 + ... + 2104903.

It is an arithmetic number, because the mean of its divisors is an integer number (553028352363).

Almost surely, 2^{2212110212101} is an apocalyptic number.

It is an amenable number.

2212110212101 is a deficient number, since it is larger than the sum of its proper divisors (3197351).

2212110212101 is a wasteful number, since it uses less digits than its factorization.

2212110212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197350.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2212110212101 its reverse (1012120112122), we get a palindrome (3224230324223).

The spelling of 2212110212101 in words is "two trillion, two hundred twelve billion, one hundred ten million, two hundred twelve thousand, one hundred one".