212101011201213 has 18 divisors (see below), whose sum is σ = 312257724648506. Its totient is φ = 138732736869792.

The previous prime is 212101011201187. The next prime is 212101011201223. The reversal of 212101011201213 is 312102110101212.

It is a happy number.

212101011201213 is a `hidden beast` number, since 21 + 210 + 10 + 11 + 201 + 213 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 43208036251524 + 168892974949689 = 6573282^2 + 12995883^2 .

It is not a de Polignac number, because 212101011201213 - 2¹⁷ = 212101011070141 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 (212101011201223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4194844606 + ... + 4194895167.

Almost surely, 2^{212101011201213} is an apocalyptic number.

It is an amenable number.

212101011201213 is a deficient number, since it is larger than the sum of its proper divisors (100156713447293).

212101011201213 is an equidigital number, since it uses as much as digits as its factorization.

212101011201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8389739885 (or 8389739829 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 212101011201213 its reverse (312102110101212), we get a palindrome (524203121302425).

The spelling of 212101011201213 in words is "two hundred twelve trillion, one hundred one billion, eleven million, two hundred one thousand, two hundred thirteen".