199221662 has 4 divisors (see below), whose sum is σ = 298832496. Its totient is φ = 99610830.

The previous prime is 199221641. The next prime is 199221667. The reversal of 199221662 is 266122991.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×199221662² = 79378541220084488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199221667) 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 as a sum of consecutive naturals, namely, 49805414 + ... + 49805417.

It is an arithmetic number, because the mean of its divisors is an integer number (74708124).

Almost surely, 2^199221662 is an apocalyptic number.

199221662 is a deficient number, since it is larger than the sum of its proper divisors (99610834).

199221662 is an equidigital number, since it uses as much as digits as its factorization.

199221662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99610833.

The product of its digits is 23328, while the sum is 38.

The square root of 199221662 is about 14114.5903943402. The cubic root of 199221662 is about 584.0439366925.

The spelling of 199221662 in words is "one hundred ninety-nine million, two hundred twenty-one thousand, six hundred sixty-two".