2201521223 has 4 divisors (see below), whose sum is σ = 2401659528. Its totient is φ = 2001382920.

The previous prime is 2201521187. The next prime is 2201521229. The reversal of 2201521223 is 3221251022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201521223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201521195 and 2201521204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201521229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100069136 + ... + 100069157.

It is an arithmetic number, because the mean of its divisors is an integer number (600414882).

Almost surely, 2^2201521223 is an apocalyptic number.

2201521223 is a deficient number, since it is larger than the sum of its proper divisors (200138305).

2201521223 is a wasteful number, since it uses less digits than its factorization.

2201521223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200138304.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2201521223 is about 46920.3710876204. The cubic root of 2201521223 is about 1300.8911489391.

Adding to 2201521223 its reverse (3221251022), we get a palindrome (5422772245).

The spelling of 2201521223 in words is "two billion, two hundred one million, five hundred twenty-one thousand, two hundred twenty-three".