1222812299 has 2 divisors, whose sum is σ = 1222812300. Its totient is φ = 1222812298.

The previous prime is 1222812287. The next prime is 1222812359. The reversal of 1222812299 is 9922182221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222812299 - 2¹² = 1222808203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222812259) 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, 611406149 + 611406150.

It is an arithmetic number, because the mean of its divisors is an integer number (611406150).

Almost surely, 2^1222812299 is an apocalyptic number.

1222812299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222812299 is an equidigital number, since it uses as much as digits as its factorization.

1222812299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 1222812299 is about 34968.7331626412. The cubic root of 1222812299 is about 1069.3501451816.

The spelling of 1222812299 in words is "one billion, two hundred twenty-two million, eight hundred twelve thousand, two hundred ninety-nine".