2101201018 has 32 divisors (see below), whose sum is σ = 3879936000. Its totient is φ = 833572080.

The previous prime is 2101201009. The next prime is 2101201033. The reversal of 2101201018 is 8101021012.

It is a junction number, because it is equal to n+sod(n) for n = 2101200992 and 2101201010.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 95268 + ... + 115231.

It is an arithmetic number, because the mean of its divisors is an integer number (121248000).

Almost surely, 2^2101201018 is an apocalyptic number.

2101201018 is a deficient number, since it is larger than the sum of its proper divisors (1778734982).

2101201018 is a wasteful number, since it uses less digits than its factorization.

2101201018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210562.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 2101201018 is about 45838.8592571848. The cubic root of 2101201018 is about 1280.8232452288.

The spelling of 2101201018 in words is "two billion, one hundred one million, two hundred one thousand, eighteen".