199213312277 has 8 divisors (see below), whose sum is σ = 228119654400. Its totient is φ = 170418794544.

The previous prime is 199213312271. The next prime is 199213312313. The reversal of 199213312277 is 772213312991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 199213312277 - 2⁶ = 199213312213 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 (199213312271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27952277 + ... + 27959402.

It is an arithmetic number, because the mean of its divisors is an integer number (28514956800).

Almost surely, 2^199213312277 is an apocalyptic number.

It is an amenable number.

199213312277 is a deficient number, since it is larger than the sum of its proper divisors (28906342123).

199213312277 is an equidigital number, since it uses as much as digits as its factorization.

199213312277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55912195.

The product of its digits is 285768, while the sum is 47.

The spelling of 199213312277 in words is "one hundred ninety-nine billion, two hundred thirteen million, three hundred twelve thousand, two hundred seventy-seven".