2102212103 has 4 divisors (see below), whose sum is σ = 2103129600. Its totient is φ = 2101294608.

The previous prime is 2102212043. The next prime is 2102212109. The reversal of 2102212103 is 3012122012.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2102212103 - 2⁶ = 2102212039 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 (2102212109) 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 3 ways as a sum of consecutive naturals, for example, 455303 + ... + 459896.

It is an arithmetic number, because the mean of its divisors is an integer number (525782400).

Almost surely, 2^2102212103 is an apocalyptic number.

2102212103 is a deficient number, since it is larger than the sum of its proper divisors (917497).

2102212103 is an equidigital number, since it uses as much as digits as its factorization.

2102212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917496.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2102212103 is about 45849.8866192709. The cubic root of 2102212103 is about 1281.0286537065.

Adding to 2102212103 its reverse (3012122012), we get a palindrome (5114334115).

Subtracting 2102212103 from its reverse (3012122012), we obtain a palindrome (909909909).

The spelling of 2102212103 in words is "two billion, one hundred two million, two hundred twelve thousand, one hundred three".