1222699 has 4 divisors (see below), whose sum is σ = 1224936. Its totient is φ = 1220464.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222699 is 9962221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222699 - 2⁵ = 1222667 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1222699.

It is not an unprimeable number, because it can be changed into a prime (1222693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (306234).

2^1222699 is an apocalyptic number.

1222699 is a deficient number, since it is larger than the sum of its proper divisors (2237).

1222699 is an equidigital number, since it uses as much as digits as its factorization.

1222699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its digits is 3888, while the sum is 31.

The square root of 1222699 is about 1105.7572066236. The cubic root of 1222699 is about 106.9317117479.

The spelling of 1222699 in words is "one million, two hundred twenty-two thousand, six hundred ninety-nine".