990201202201 has 4 divisors (see below), whose sum is σ = 999455419152. Its totient is φ = 980946985252.

The previous prime is 990201202187. The next prime is 990201202213. The reversal of 990201202201 is 102202102099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 990201202201 - 2⁵ = 990201202169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 990201202201.

It is not an unprimeable number, because it can be changed into a prime (990201212201) 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 3 ways as a sum of consecutive naturals, for example, 4627108315 + ... + 4627108528.

It is an arithmetic number, because the mean of its divisors is an integer number (249863854788).

Almost surely, 2^990201202201 is an apocalyptic number.

It is an amenable number.

990201202201 is a deficient number, since it is larger than the sum of its proper divisors (9254216951).

990201202201 is a wasteful number, since it uses less digits than its factorization.

990201202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254216950.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 990201202201 in words is "nine hundred ninety billion, two hundred one million, two hundred two thousand, two hundred one".