212012322103 has 4 divisors (see below), whose sum is σ = 212017524520. Its totient is φ = 212007119688.

The previous prime is 212012322059. The next prime is 212012322133. The reversal of 212012322103 is 301223210212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012322103 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 (212012322133) 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, 2539593 + ... + 2621746.

It is an arithmetic number, because the mean of its divisors is an integer number (53004381130).

Almost surely, 2^212012322103 is an apocalyptic number.

212012322103 is a deficient number, since it is larger than the sum of its proper divisors (5202417).

212012322103 is an equidigital number, since it uses as much as digits as its factorization.

212012322103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202416.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212012322103 its reverse (301223210212), we get a palindrome (513235532315).

The spelling of 212012322103 in words is "two hundred twelve billion, twelve million, three hundred twenty-two thousand, one hundred three".