201212143213 has 2 divisors, whose sum is σ = 201212143214. Its totient is φ = 201212143212.

The previous prime is 201212143201. The next prime is 201212143241. The reversal of 201212143213 is 312341212102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201208764969 + 3378244 = 448563^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 201212143213 - 2⁹ = 201212142701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201212143273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606071606 + 100606071607.

It is an arithmetic number, because the mean of its divisors is an integer number (100606071607).

Almost surely, 2^201212143213 is an apocalyptic number.

It is an amenable number.

201212143213 is a deficient number, since it is larger than the sum of its proper divisors (1).

201212143213 is an equidigital number, since it uses as much as digits as its factorization.

201212143213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201212143213 its reverse (312341212102), we get a palindrome (513553355315).

It can be divided in two parts, 2012 and 12143213, that added together give a square (12145225 = 3485²).

The spelling of 201212143213 in words is "two hundred one billion, two hundred twelve million, one hundred forty-three thousand, two hundred thirteen".