1122198 has 48 divisors (see below), whose sum is σ = 2856384. Its totient is φ = 290640.

The previous prime is 1122181. The next prime is 1122227. The reversal of 1122198 is 8912211.

It is a congruent number.

It is an unprimeable number.

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, 3061 + ... + 3407.

It is an arithmetic number, because the mean of its divisors is an integer number (59508).

2^1122198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428192).

1122198 is an abundant number, since it is smaller than the sum of its proper divisors (1734186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122198 is a wasteful number, since it uses less digits than its factorization.

1122198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 370 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 1122198 is about 1059.3384728216. The cubic root of 1122198 is about 103.9177727757.

The spelling of 1122198 in words is "one million, one hundred twenty-two thousand, one hundred ninety-eight".