212210111213 has 4 divisors (see below), whose sum is σ = 212211240768. Its totient is φ = 212208981660.

The previous prime is 212210111209. The next prime is 212210111219. The reversal of 212210111213 is 312111012212.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212210111213 - 2² = 212210111209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212210111191 and 212210111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210111219) 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, 207731 + ... + 683792.

It is an arithmetic number, because the mean of its divisors is an integer number (53052810192).

Almost surely, 2^212210111213 is an apocalyptic number.

It is an amenable number.

212210111213 is a deficient number, since it is larger than the sum of its proper divisors (1129555).

212210111213 is an equidigital number, since it uses as much as digits as its factorization.

212210111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129554.

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

Adding to 212210111213 its reverse (312111012212), we get a palindrome (524321123425).

Subtracting 212210111213 from its reverse (312111012212), we obtain a palindrome (99900900999).

The spelling of 212210111213 in words is "two hundred twelve billion, two hundred ten million, one hundred eleven thousand, two hundred thirteen".