199378222 has 8 divisors (see below), whose sum is σ = 301811400. Its totient is φ = 98774424.

The previous prime is 199378213. The next prime is 199378243. The reversal of 199378222 is 222873991.

199378222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457072 + ... + 457507.

It is an arithmetic number, because the mean of its divisors is an integer number (37726425).

Almost surely, 2^199378222 is an apocalyptic number.

199378222 is a deficient number, since it is larger than the sum of its proper divisors (102433178).

199378222 is a wasteful number, since it uses less digits than its factorization.

199378222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914690.

The product of its digits is 108864, while the sum is 43.

The square root of 199378222 is about 14120.1353392947. The cubic root of 199378222 is about 584.1968885617.

The spelling of 199378222 in words is "one hundred ninety-nine million, three hundred seventy-eight thousand, two hundred twenty-two".