1211100170199 has 8 divisors (see below), whose sum is σ = 1699789712640. Its totient is φ = 764905370616.

The previous prime is 1211100170167. The next prime is 1211100170207. The reversal of 1211100170199 is 9910710011121.

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

It is not a de Polignac number, because 1211100170199 - 2⁵ = 1211100170167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211100170899) 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 7 ways as a sum of consecutive naturals, for example, 10623685647 + ... + 10623685760.

It is an arithmetic number, because the mean of its divisors is an integer number (212473714080).

Almost surely, 2^{1211100170199} is an apocalyptic number.

1211100170199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1211100170199 is a deficient number, since it is larger than the sum of its proper divisors (488689542441).

1211100170199 is a wasteful number, since it uses less digits than its factorization.

1211100170199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21247371429.

The product of its (nonzero) digits is 1134, while the sum is 33.

The spelling of 1211100170199 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred seventy thousand, one hundred ninety-nine".