12212131223029 has 2 divisors, whose sum is σ = 12212131223030. Its totient is φ = 12212131223028.

The previous prime is 12212131223021. The next prime is 12212131223081. The reversal of 12212131223029 is 92032213121221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10779566400625 + 1432564822404 = 3283225^2 + 1196898^2 .

It is an emirp because it is prime and its reverse (92032213121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212131223029 - 2³ = 12212131223021 is a prime.

It is a super-2 number, since 2×12212131223029² (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 (12212131223021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106065611514 + 6106065611515.

It is an arithmetic number, because the mean of its divisors is an integer number (6106065611515).

Almost surely, 2^{12212131223029} is an apocalyptic number.

It is an amenable number.

12212131223029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212131223029 is an equidigital number, since it uses as much as digits as its factorization.

12212131223029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 12212131223029 in words is "twelve trillion, two hundred twelve billion, one hundred thirty-one million, two hundred twenty-three thousand, twenty-nine".