212101122103 has 8 divisors (see below), whose sum is σ = 228594644208. Its totient is φ = 195633035904.

The previous prime is 212101122097. The next prime is 212101122109. The reversal of 212101122103 is 301221101212.

It is an interprime number because it is at equal distance from previous prime (212101122097) and next prime (212101122109).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212101122103 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 (212101122109) 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 7 ways as a sum of consecutive naturals, for example, 6341650 + ... + 6375007.

It is an arithmetic number, because the mean of its divisors is an integer number (28574330526).

Almost surely, 2^212101122103 is an apocalyptic number.

212101122103 is a deficient number, since it is larger than the sum of its proper divisors (16493522105).

212101122103 is a wasteful number, since it uses less digits than its factorization.

212101122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12717953.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212101122103 its reverse (301221101212), we get a palindrome (513322223315).

The spelling of 212101122103 in words is "two hundred twelve billion, one hundred one million, one hundred twenty-two thousand, one hundred three".