12211001212229 has 2 divisors, whose sum is σ = 12211001212230. Its totient is φ = 12211001212228.

The previous prime is 12211001212217. The next prime is 12211001212243. The reversal of 12211001212229 is 92221210011221.

12211001212229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11477879961604 + 733121250625 = 3387902^2 + 856225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211001212229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12211001212198 and 12211001212207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211001212259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105500606114 + 6105500606115.

It is an arithmetic number, because the mean of its divisors is an integer number (6105500606115).

Almost surely, 2^{12211001212229} is an apocalyptic number.

It is an amenable number.

12211001212229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211001212229 is an equidigital number, since it uses as much as digits as its factorization.

12211001212229 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 26.

The spelling of 12211001212229 in words is "twelve trillion, two hundred eleven billion, one million, two hundred twelve thousand, two hundred twenty-nine".