199211286345 has 16 divisors (see below), whose sum is σ = 318788334720. Its totient is φ = 106229260544.

The previous prime is 199211286341. The next prime is 199211286389. The reversal of 199211286345 is 543682112991.

It is a cyclic number.

It is not a de Polignac number, because 199211286345 - 2² = 199211286341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199211286341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948864 + ... + 1139633.

It is an arithmetic number, because the mean of its divisors is an integer number (19924270920).

Almost surely, 2^199211286345 is an apocalyptic number.

199211286345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199211286345 is a deficient number, since it is larger than the sum of its proper divisors (119577048375).

199211286345 is a wasteful number, since it uses less digits than its factorization.

199211286345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094864.

The product of its digits is 933120, while the sum is 51.

The spelling of 199211286345 in words is "one hundred ninety-nine billion, two hundred eleven million, two hundred eighty-six thousand, three hundred forty-five".