212001103213 has 4 divisors (see below), whose sum is σ = 212018771680. Its totient is φ = 211983434748.

The previous prime is 212001103199. The next prime is 212001103253. The reversal of 212001103213 is 312301100212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212001103213 - 2²¹ = 211999006061 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 (212001103253) 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, 8816223 + ... + 8840236.

It is an arithmetic number, because the mean of its divisors is an integer number (53004692920).

Almost surely, 2^212001103213 is an apocalyptic number.

It is an amenable number.

212001103213 is a deficient number, since it is larger than the sum of its proper divisors (17668467).

212001103213 is a wasteful number, since it uses less digits than its factorization.

212001103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17668466.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212001103213 its reverse (312301100212), we get a palindrome (524302203425).

The spelling of 212001103213 in words is "two hundred twelve billion, one million, one hundred three thousand, two hundred thirteen".