12212212212149 has 2 divisors, whose sum is σ = 12212212212150. Its totient is φ = 12212212212148.

The previous prime is 12212212212091. The next prime is 12212212212223. The reversal of 12212212212149 is 94121221221221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6131021688100 + 6081190524049 = 2476090^2 + 2466007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212212212149 is a prime.

It is a super-2 number, since 2×12212212212149² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212212212049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106106106074 + 6106106106075.

It is an arithmetic number, because the mean of its divisors is an integer number (6106106106075).

Almost surely, 2^{12212212212149} is an apocalyptic number.

It is an amenable number.

12212212212149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212212212149 is an equidigital number, since it uses as much as digits as its factorization.

12212212212149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The spelling of 12212212212149 in words is "twelve trillion, two hundred twelve billion, two hundred twelve million, two hundred twelve thousand, one hundred forty-nine".