199213312271 has 2 divisors, whose sum is σ = 199213312272. Its totient is φ = 199213312270.

The previous prime is 199213312241. The next prime is 199213312313. The reversal of 199213312271 is 172213312991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199213312271 - 2²² = 199209117967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199213312241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99606656135 + 99606656136.

It is an arithmetic number, because the mean of its divisors is an integer number (99606656136).

Almost surely, 2^199213312271 is an apocalyptic number.

199213312271 is a deficient number, since it is larger than the sum of its proper divisors (1).

199213312271 is an equidigital number, since it uses as much as digits as its factorization.

199213312271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The spelling of 199213312271 in words is "one hundred ninety-nine billion, two hundred thirteen million, three hundred twelve thousand, two hundred seventy-one".