12212141 has 2 divisors, whose sum is σ = 12212142. Its totient is φ = 12212140.

The previous prime is 12212131. The next prime is 12212143. The reversal of 12212141 is 14121221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 32041 = 3490^2 + 179^2 .

It is an emirp because it is prime and its reverse (14121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212141 - 2⁶ = 12212077 is a prime.

Together with 12212143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12212143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106070 + 6106071.

It is an arithmetic number, because the mean of its divisors is an integer number (6106071).

Almost surely, 2^12212141 is an apocalyptic number.

It is an amenable number.

12212141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212141 is an equidigital number, since it uses as much as digits as its factorization.

12212141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32, while the sum is 14.

The square root of 12212141 is about 3494.5873862303. The cubic root of 12212141 is about 230.2840912958.

Adding to 12212141 its reverse (14121221), we get a palindrome (26333362).

The spelling of 12212141 in words is "twelve million, two hundred twelve thousand, one hundred forty-one".