1222299 has 24 divisors (see below), whose sum is σ = 1968512. Its totient is φ = 725760.

The previous prime is 1222279. The next prime is 1222307. The reversal of 1222299 is 9922221.

It is not a de Polignac number, because 1222299 - 2⁵ = 1222267 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1222219) 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 23 ways as a sum of consecutive naturals, for example, 3459 + ... + 3795.

2^1222299 is an apocalyptic number.

1222299 is a deficient number, since it is larger than the sum of its proper divisors (746213).

1222299 is a wasteful number, since it uses less digits than its factorization.

1222299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 384 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1222299 is about 1105.5763202963. The cubic root of 1222299 is about 106.9200497471.

It can be divided in two parts, 12222 and 99, that added together give a palindrome (12321).

The spelling of 1222299 in words is "one million, two hundred twenty-two thousand, two hundred ninety-nine".