2201320891 has 8 divisors (see below), whose sum is σ = 2744504064. Its totient is φ = 1715314920.

The previous prime is 2201320889. The next prime is 2201320897. The reversal of 2201320891 is 1980231022.

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

It is not a de Polignac number, because 2201320891 - 2¹ = 2201320889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201320897) 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 7 ways as a sum of consecutive naturals, for example, 14294215 + ... + 14294368.

It is an arithmetic number, because the mean of its divisors is an integer number (343063008).

Almost surely, 2^2201320891 is an apocalyptic number.

2201320891 is a deficient number, since it is larger than the sum of its proper divisors (543183173).

2201320891 is a wasteful number, since it uses less digits than its factorization.

2201320891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588601.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2201320891 is about 46918.2362307024. The cubic root of 2201320891 is about 1300.8516886441.

The spelling of 2201320891 in words is "two billion, two hundred one million, three hundred twenty thousand, eight hundred ninety-one".