212230001213 has 4 divisors (see below), whose sum is σ = 217406342748. Its totient is φ = 207053659680.

The previous prime is 212230001153. The next prime is 212230001251. The reversal of 212230001213 is 312100032212.

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 6074955364 + 206155045849 = 77942^2 + 454043^2 .

It is a cyclic number.

It is not a de Polignac number, because 212230001213 - 2¹⁰ = 212230000189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212230001191 and 212230001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212230001413) 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, 2588170706 + ... + 2588170787.

It is an arithmetic number, because the mean of its divisors is an integer number (54351585687).

Almost surely, 2^212230001213 is an apocalyptic number.

It is an amenable number.

212230001213 is a deficient number, since it is larger than the sum of its proper divisors (5176341535).

212230001213 is an equidigital number, since it uses as much as digits as its factorization.

212230001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176341534.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212230001213 its reverse (312100032212), we get a palindrome (524330033425).

The spelling of 212230001213 in words is "two hundred twelve billion, two hundred thirty million, one thousand, two hundred thirteen".