199022422 has 4 divisors (see below), whose sum is σ = 298533636. Its totient is φ = 99511210.

The previous prime is 199022413. The next prime is 199022437. The reversal of 199022422 is 224220991.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49755604 + ... + 49755607.

It is an arithmetic number, because the mean of its divisors is an integer number (74633409).

Almost surely, 2^199022422 is an apocalyptic number.

199022422 is a deficient number, since it is larger than the sum of its proper divisors (99511214).

199022422 is an equidigital number, since it uses as much as digits as its factorization.

199022422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99511213.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 199022422 is about 14107.5306839999. The cubic root of 199022422 is about 583.8491725184.

The spelling of 199022422 in words is "one hundred ninety-nine million, twenty-two thousand, four hundred twenty-two".