1222198 has 16 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 567936.

The previous prime is 1222187. The next prime is 1222219. The reversal of 1222198 is 8912221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3328 + ... + 3676.

It is an arithmetic number, because the mean of its divisors is an integer number (122850).

2^1222198 is an apocalyptic number.

1222198 is a deficient number, since it is larger than the sum of its proper divisors (743402).

1222198 is a wasteful number, since it uses less digits than its factorization.

1222198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 576, while the sum is 25.

The square root of 1222198 is about 1105.5306418187. The cubic root of 1222198 is about 106.9171046897.

The spelling of 1222198 in words is "one million, two hundred twenty-two thousand, one hundred ninety-eight".