201020199 has 16 divisors (see below), whose sum is σ = 280026720. Its totient is φ = 128105600.

The previous prime is 201020191. The next prime is 201020201. The reversal of 201020199 is 991020102.

It is a cyclic number.

It is not a de Polignac number, because 201020199 - 2³ = 201020191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2652 + ... + 20225.

It is an arithmetic number, because the mean of its divisors is an integer number (17501670).

Almost surely, 2^201020199 is an apocalyptic number.

201020199 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

201020199 is a deficient number, since it is larger than the sum of its proper divisors (79006521).

201020199 is a wasteful number, since it uses less digits than its factorization.

201020199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23010.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 201020199 is about 14178.1592246666. The cubic root of 201020199 is about 585.7962216668.

The spelling of 201020199 in words is "two hundred one million, twenty thousand, one hundred ninety-nine".