1122099 has 16 divisors (see below), whose sum is σ = 1678080. Its totient is φ = 660960.

The previous prime is 1122091. The next prime is 1122103. The reversal of 1122099 is 9902211.

It is not a de Polignac number, because 1122099 - 2³ = 1122091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122091) 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 15 ways as a sum of consecutive naturals, for example, 762 + ... + 1680.

It is an arithmetic number, because the mean of its divisors is an integer number (104880).

2^1122099 is an apocalyptic number.

1122099 is a deficient number, since it is larger than the sum of its proper divisors (555981).

1122099 is a wasteful number, since it uses less digits than its factorization.

1122099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1122099 is about 1059.2917445161. The cubic root of 1122099 is about 103.9147168200.

It can be divided in two parts, 112 and 2099, that added together give a triangular number (2211 = T₆₆).

The spelling of 1122099 in words is "one million, one hundred twenty-two thousand, ninety-nine".