199100111102 has 4 divisors (see below), whose sum is σ = 298650166656. Its totient is φ = 99550055550.

The previous prime is 199100111101. The next prime is 199100111143. The reversal of 199100111102 is 201111001991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199100111101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49775027774 + ... + 49775027777.

It is an arithmetic number, because the mean of its divisors is an integer number (74662541664).

Almost surely, 2^199100111102 is an apocalyptic number.

199100111102 is a deficient number, since it is larger than the sum of its proper divisors (99550055554).

199100111102 is an equidigital number, since it uses as much as digits as its factorization.

199100111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99550055553.

The product of its (nonzero) digits is 162, while the sum is 26.

The spelling of 199100111102 in words is "one hundred ninety-nine billion, one hundred million, one hundred eleven thousand, one hundred two".