12211210100213 has 4 divisors (see below), whose sum is σ = 12281795129868. Its totient is φ = 12140625070560.

The previous prime is 12211210100209. The next prime is 12211210100339. The reversal of 12211210100213 is 31200101211221.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9339276576529 + 2871933523684 = 3056023^2 + 1694678^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211210100213 - 2² = 12211210100209 is a prime.

It is a super-2 number, since 2×12211210100213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211210100191 and 12211210100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211210100813) 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, 35292514568 + ... + 35292514913.

It is an arithmetic number, because the mean of its divisors is an integer number (3070448782467).

Almost surely, 2^{12211210100213} is an apocalyptic number.

It is an amenable number.

12211210100213 is a deficient number, since it is larger than the sum of its proper divisors (70585029655).

12211210100213 is an equidigital number, since it uses as much as digits as its factorization.

12211210100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70585029654.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12211210100213 its reverse (31200101211221), we get a palindrome (43411311311434).

The spelling of 12211210100213 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, one hundred thousand, two hundred thirteen".