12213203212213 has 2 divisors, whose sum is σ = 12213203212214. Its totient is φ = 12213203212212.

The previous prime is 12213203212183. The next prime is 12213203212219. The reversal of 12213203212213 is 31221230231221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11896001087364 + 317202124849 = 3449058^2 + 563207^2 .

It is an emirp because it is prime and its reverse (31221230231221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12213203212213 - 2¹³ = 12213203204021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213203212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106601606106 + 6106601606107.

It is an arithmetic number, because the mean of its divisors is an integer number (6106601606107).

Almost surely, 2^{12213203212213} is an apocalyptic number.

It is an amenable number.

12213203212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213203212213 is an equidigital number, since it uses as much as digits as its factorization.

12213203212213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12213203212213 its reverse (31221230231221), we get a palindrome (43434433443434).

The spelling of 12213203212213 in words is "twelve trillion, two hundred thirteen billion, two hundred three million, two hundred twelve thousand, two hundred thirteen".