201022869 has 16 divisors (see below), whose sum is σ = 282841280. Its totient is φ = 126645120.

The previous prime is 201022823. The next prime is 201022883. The reversal of 201022869 is 968220102.

It is not a de Polignac number, because 201022869 - 2⁹ = 201022357 is a prime.

It is a super-2 number, since 2×201022869² = 80820387721982322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022889) 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 15 ways as a sum of consecutive naturals, for example, 19809 + ... + 28185.

It is an arithmetic number, because the mean of its divisors is an integer number (17677580).

Almost surely, 2^201022869 is an apocalyptic number.

It is an amenable number.

201022869 is a deficient number, since it is larger than the sum of its proper divisors (81818411).

201022869 is a wasteful number, since it uses less digits than its factorization.

201022869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 201022869 is about 14178.2533832627. The cubic root of 201022869 is about 585.7988152187.

The spelling of 201022869 in words is "two hundred one million, twenty-two thousand, eight hundred sixty-nine".