201020201099 has 8 divisors (see below), whose sum is σ = 205143945840. Its totient is φ = 196908712416.

The previous prime is 201020201029. The next prime is 201020201101. The reversal of 201020201099 is 990102020102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201020201099 - 2²⁴ = 201003423883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020201029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3030872 + ... + 3096485.

It is an arithmetic number, because the mean of its divisors is an integer number (25642993230).

Almost surely, 2^201020201099 is an apocalyptic number.

201020201099 is a deficient number, since it is larger than the sum of its proper divisors (4123744741).

201020201099 is an equidigital number, since it uses as much as digits as its factorization.

201020201099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128029.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 201020201099 in words is "two hundred one billion, twenty million, two hundred one thousand, ninety-nine".