1222499 has 2 divisors, whose sum is σ = 1222500.
Its totient is φ = 1222498.
The previous prime is 1222493. The next prime is 1222513. The reversal of 1222499 is 9942221.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1222499 - 24 = 1222483 is a prime.
It is a plaindrome in base 10.
It is a nialpdrome in base 11.
It is not a weakly prime, because it can be changed into another prime (1222493) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611249 + 611250.
It is an arithmetic number, because the mean of its divisors is an integer number (611250).
21222499 is an apocalyptic number.
1222499 is a deficient number, since it is larger than the sum of its proper divisors (1).
1222499 is an equidigital number, since it uses as much as digits as its factorization.
1222499 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2592, while the sum is 29.
The square root of 1222499 is about 1105.6667671591.
Note that the first 3 decimals coincide.
The cubic root of 1222499 is about 106.9258810655.
The spelling of 1222499 in words is "one million, two hundred twenty-two thousand, four hundred ninety-nine".