199222605 has 64 divisors (see below), whose sum is σ = 369907200. Its totient is φ = 101606400.

The previous prime is 199222591. The next prime is 199222607. The reversal of 199222605 is 506222991.

It is a happy number.

It is not a de Polignac number, because 199222605 - 2⁴ = 199222589 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 199222605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199222607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 590997 + ... + 591333.

It is an arithmetic number, because the mean of its divisors is an integer number (5779800).

Almost surely, 2^199222605 is an apocalyptic number.

199222605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199222605 is a deficient number, since it is larger than the sum of its proper divisors (170684595).

199222605 is a wasteful number, since it uses less digits than its factorization.

199222605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 199222605 is about 14114.6237994500. The cubic root of 199222605 is about 584.0448581997.

The spelling of 199222605 in words is "one hundred ninety-nine million, two hundred twenty-two thousand, six hundred five".