199022071 has 4 divisors (see below), whose sum is σ = 199762200. Its totient is φ = 198281944.

The previous prime is 199022063. The next prime is 199022107. The reversal of 199022071 is 170220991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170220991 = 1489 ⋅114319.

It is a cyclic number.

It is not a de Polignac number, because 199022071 - 2³ = 199022063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199022171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369661 + ... + 370198.

It is an arithmetic number, because the mean of its divisors is an integer number (49940550).

Almost surely, 2^199022071 is an apocalyptic number.

199022071 is a deficient number, since it is larger than the sum of its proper divisors (740129).

199022071 is an equidigital number, since it uses as much as digits as its factorization.

199022071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740128.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 199022071 is about 14107.5182438301. The cubic root of 199022071 is about 583.8488292888.

The spelling of 199022071 in words is "one hundred ninety-nine million, twenty-two thousand, seventy-one".