212231110103 has 4 divisors (see below), whose sum is σ = 215398738680. Its totient is φ = 209063481528.

The previous prime is 212231110057. The next prime is 212231110111. The reversal of 212231110103 is 301011132212.

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 212231110103 - 2¹⁶ = 212231044567 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 (212231110163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583814188 + ... + 1583814321.

It is an arithmetic number, because the mean of its divisors is an integer number (53849684670).

Almost surely, 2^212231110103 is an apocalyptic number.

212231110103 is a deficient number, since it is larger than the sum of its proper divisors (3167628577).

212231110103 is an equidigital number, since it uses as much as digits as its factorization.

212231110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167628576.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212231110103 its reverse (301011132212), we get a palindrome (513242242315).

The spelling of 212231110103 in words is "two hundred twelve billion, two hundred thirty-one million, one hundred ten thousand, one hundred three".