201020111020099 has 16 divisors (see below), whose sum is σ = 248908232060928. Its totient is φ = 158396147667072.

The previous prime is 201020111020073. The next prime is 201020111020121. The reversal of 201020111020099 is 990020111020102.

It is not a de Polignac number, because 201020111020099 - 2⁵ = 201020111020067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020111020039) 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, 19642374307 + ... + 19642384540.

It is an arithmetic number, because the mean of its divisors is an integer number (15556764503808).

Almost surely, 2^{201020111020099} is an apocalyptic number.

201020111020099 is a deficient number, since it is larger than the sum of its proper divisors (47888121040829).

201020111020099 is a wasteful number, since it uses less digits than its factorization.

201020111020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39284758914.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 201020111020099 in words is "two hundred one trillion, twenty billion, one hundred eleven million, twenty thousand, ninety-nine".