1222199999 has 2 divisors, whose sum is σ = 1222200000. Its totient is φ = 1222199998.

The previous prime is 1222199939. The next prime is 1222200011. The reversal of 1222199999 is 9999912221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222199999 - 2¹² = 1222195903 is a prime.

1222199999 is a modest number, since divided by 99999 gives 12221 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1222199999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222199939) 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, 611099999 + 611100000.

It is an arithmetic number, because the mean of its divisors is an integer number (611100000).

Almost surely, 2^1222199999 is an apocalyptic number.

1222199999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222199999 is an equidigital number, since it uses as much as digits as its factorization.

1222199999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 472392, while the sum is 53.

The square root of 1222199999 is about 34959.9771023952. The cubic root of 1222199999 is about 1069.1716298004.

The spelling of 1222199999 in words is "one billion, two hundred twenty-two million, one hundred ninety-nine thousand, nine hundred ninety-nine".