2101122210194 has 24 divisors (see below), whose sum is σ = 3765331534860. Its totient is φ = 876143622816.

The previous prime is 2101122210191. The next prime is 2101122210221. The reversal of 2101122210194 is 4910122211012.

It can be written as a sum of positive squares in 2 ways, for example, as 2062058664169 + 39063546025 = 1435987^2 + 197645^2 .

It is not an unprimeable number, because it can be changed into a prime (2101122210191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289726409 + ... + 289733660.

Almost surely, 2^{2101122210194} is an apocalyptic number.

2101122210194 is a deficient number, since it is larger than the sum of its proper divisors (1664209324666).

2101122210194 is a wasteful number, since it uses less digits than its factorization.

2101122210194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579460122 (or 579460115 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 2101122210194 in words is "two trillion, one hundred one billion, one hundred twenty-two million, two hundred ten thousand, one hundred ninety-four".