1212198 has 16 divisors (see below), whose sum is σ = 2611056. Its totient is φ = 372960.

The previous prime is 1212191. The next prime is 1212199. The reversal of 1212198 is 8912121.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693 + ... + 7848.

It is an arithmetic number, because the mean of its divisors is an integer number (163191).

2^1212198 is an apocalyptic number.

1212198 is an abundant number, since it is smaller than the sum of its proper divisors (1398858).

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

1212198 is a wasteful number, since it uses less digits than its factorization.

1212198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15559.

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

The square root of 1212198 is about 1100.9986376013. The cubic root of 1212198 is about 106.6247078895.

The spelling of 1212198 in words is "one million, two hundred twelve thousand, one hundred ninety-eight".