1222099 has 8 divisors (see below), whose sum is σ = 1298880. Its totient is φ = 1146600.

The previous prime is 1222097. The next prime is 1222129. The reversal of 1222099 is 9902221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222099 - 2¹ = 1222097 is a prime.

It is a Duffinian number.

1222099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1222097) 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 in 7 ways as a sum of consecutive naturals, for example, 2244 + ... + 2734.

It is an arithmetic number, because the mean of its divisors is an integer number (162360).

2^1222099 is an apocalyptic number.

1222099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1222099 is a deficient number, since it is larger than the sum of its proper divisors (76781).

1222099 is a wasteful number, since it uses less digits than its factorization.

1222099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1222099 is about 1105.4858660336. The cubic root of 1222099 is about 106.9142177927.

The spelling of 1222099 in words is "one million, two hundred twenty-two thousand, ninety-nine".