212321133312213 has 16 divisors (see below), whose sum is σ = 292227364915200. Its totient is φ = 136981175357040.

The previous prime is 212321133312199. The next prime is 212321133312221. The reversal of 212321133312213 is 312213331123212.

It is a happy number.

It is not a de Polignac number, because 212321133312213 - 2⁶ = 212321133312149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321133312313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87372658 + ... + 89769836.

It is an arithmetic number, because the mean of its divisors is an integer number (18264210307200).

Almost surely, 2^{212321133312213} is an apocalyptic number.

It is an amenable number.

212321133312213 is a deficient number, since it is larger than the sum of its proper divisors (79906231602987).

212321133312213 is a wasteful number, since it uses less digits than its factorization.

212321133312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349592.

The product of its digits is 7776, while the sum is 30.

Adding to 212321133312213 its reverse (312213331123212), we get a palindrome (524534464435425).

The spelling of 212321133312213 in words is "two hundred twelve trillion, three hundred twenty-one billion, one hundred thirty-three million, three hundred twelve thousand, two hundred thirteen".