12212441 has 2 divisors, whose sum is σ = 12212442. Its totient is φ = 12212440.

The previous prime is 12212429. The next prime is 12212467. The reversal of 12212441 is 14421221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8826841 + 3385600 = 2971^2 + 1840^2 .

It is an emirp because it is prime and its reverse (14421221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212441 - 2⁶ = 12212377 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106220 + 6106221.

It is an arithmetic number, because the mean of its divisors is an integer number (6106221).

Almost surely, 2^12212441 is an apocalyptic number.

It is an amenable number.

12212441 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212441 is an equidigital number, since it uses as much as digits as its factorization.

12212441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128, while the sum is 17.

The square root of 12212441 is about 3494.6303094891. The cubic root of 12212441 is about 230.2859769783.

Adding to 12212441 its reverse (14421221), we get a palindrome (26633662).

It can be divided in two parts, 1221 and 2441, that multiplied together give a triangular number (2980461 = T₂₄₄₁).

The spelling of 12212441 in words is "twelve million, two hundred twelve thousand, four hundred forty-one".