1224120211 has 2 divisors, whose sum is σ = 1224120212. Its totient is φ = 1224120210.

The previous prime is 1224120197. The next prime is 1224120221. The reversal of 1224120211 is 1120214221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1224120211 - 2¹⁵ = 1224087443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224120221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612060105 + 612060106.

It is an arithmetic number, because the mean of its divisors is an integer number (612060106).

Almost surely, 2^1224120211 is an apocalyptic number.

1224120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224120211 is an equidigital number, since it uses as much as digits as its factorization.

1224120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1224120211 is about 34987.4293282602. The cubic root of 1224120211 is about 1069.7312659620.

Adding to 1224120211 its reverse (1120214221), we get a palindrome (2344334432).

The spelling of 1224120211 in words is "one billion, two hundred twenty-four million, one hundred twenty thousand, two hundred eleven".