199196217 has 12 divisors (see below), whose sum is σ = 313885104. Its totient is φ = 120724920.

The previous prime is 199196203. The next prime is 199196233. The reversal of 199196217 is 712691991.

199196217 is a `hidden beast` number, since 1 + 9 + 9 + 19 + 621 + 7 = 666.

It is not a de Polignac number, because 199196217 - 2⁴ = 199196201 is a prime.

It is a super-2 number, since 2×199196217² = 79358265734222178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199196237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1005943 + ... + 1006140.

It is an arithmetic number, because the mean of its divisors is an integer number (26157092).

Almost surely, 2^199196217 is an apocalyptic number.

It is an amenable number.

199196217 is a deficient number, since it is larger than the sum of its proper divisors (114688887).

199196217 is a wasteful number, since it uses less digits than its factorization.

199196217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012100 (or 2012097 counting only the distinct ones).

The product of its digits is 61236, while the sum is 45.

The square root of 199196217 is about 14113.6889933143. The cubic root of 199196217 is about 584.0190705366.

The spelling of 199196217 in words is "one hundred ninety-nine million, one hundred ninety-six thousand, two hundred seventeen".