212212101212213 has 8 divisors (see below), whose sum is σ = 224779101475032. Its totient is φ = 199654427114496.

The previous prime is 212212101212201. The next prime is 212212101212219. The reversal of 212212101212213 is 312212101212212.

It can be written as a sum of positive squares in 4 ways, for example, as 123617637649 + 212088483574564 = 351593^2 + 14563258^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 212212101212213 - 2¹⁶ = 212212101146677 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 (212212101212219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331494420 + ... + 2331585437.

It is an arithmetic number, because the mean of its divisors is an integer number (28097387684379).

Almost surely, 2^{212212101212213} is an apocalyptic number.

It is an amenable number.

212212101212213 is a deficient number, since it is larger than the sum of its proper divisors (12567000262819).

212212101212213 is a wasteful number, since it uses less digits than its factorization.

212212101212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663082551.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 212212101212213 its reverse (312212101212212), we get a palindrome (524424202424425).

Subtracting 212212101212213 from its reverse (312212101212212), we obtain a palindrome (99999999999999).

The spelling of 212212101212213 in words is "two hundred twelve trillion, two hundred twelve billion, one hundred one million, two hundred twelve thousand, two hundred thirteen".