198412211 has 2 divisors, whose sum is σ = 198412212. Its totient is φ = 198412210.

The previous prime is 198412187. The next prime is 198412217. The reversal of 198412211 is 112214891.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198412211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198412217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99206105 + 99206106.

It is an arithmetic number, because the mean of its divisors is an integer number (99206106).

Almost surely, 2^198412211 is an apocalyptic number.

198412211 is a deficient number, since it is larger than the sum of its proper divisors (1).

198412211 is an equidigital number, since it uses as much as digits as its factorization.

198412211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 29.

The square root of 198412211 is about 14085.8869440302. The cubic root of 198412211 is about 583.2518597142.

The spelling of 198412211 in words is "one hundred ninety-eight million, four hundred twelve thousand, two hundred eleven".