12213312300121 has 2 divisors, whose sum is σ = 12213312300122. Its totient is φ = 12213312300120.

The previous prime is 12213312300067. The next prime is 12213312300221. The reversal of 12213312300121 is 12100321331221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9987654105625 + 2225658194496 = 3160325^2 + 1491864^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213312300121 - 2³⁵ = 12178952561753 is a prime.

It is a super-2 number, since 2×12213312300121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12213312300092 and 12213312300101.

It is not a weakly prime, because it can be changed into another prime (12213312300221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106656150060 + 6106656150061.

It is an arithmetic number, because the mean of its divisors is an integer number (6106656150061).

Almost surely, 2^{12213312300121} is an apocalyptic number.

It is an amenable number.

12213312300121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213312300121 is an equidigital number, since it uses as much as digits as its factorization.

12213312300121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12213312300121 its reverse (12100321331221), we get a palindrome (24313633631342).

The spelling of 12213312300121 in words is "twelve trillion, two hundred thirteen billion, three hundred twelve million, three hundred thousand, one hundred twenty-one".