1222524409 has 2 divisors, whose sum is σ = 1222524410. Its totient is φ = 1222524408.

The previous prime is 1222524371. The next prime is 1222524419. The reversal of 1222524409 is 9044252221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090848784 + 131675625 = 33028^2 + 11475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222524409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222524419) 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, 611262204 + 611262205.

It is an arithmetic number, because the mean of its divisors is an integer number (611262205).

Almost surely, 2^1222524409 is an apocalyptic number.

It is an amenable number.

1222524409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222524409 is an equidigital number, since it uses as much as digits as its factorization.

1222524409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1222524409 is about 34964.6165287137. The cubic root of 1222524409 is about 1069.2662185979.

The spelling of 1222524409 in words is "one billion, two hundred twenty-two million, five hundred twenty-four thousand, four hundred nine".