2243132221 has 4 divisors (see below), whose sum is σ = 2447053344. Its totient is φ = 2039211100.

The previous prime is 2243132209. The next prime is 2243132231. The reversal of 2243132221 is 1222313422.

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 2243132221 - 2⁵ = 2243132189 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243132192 and 2243132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243132231) 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, 101960545 + ... + 101960566.

It is an arithmetic number, because the mean of its divisors is an integer number (611763336).

Almost surely, 2^2243132221 is an apocalyptic number.

It is an amenable number.

2243132221 is a deficient number, since it is larger than the sum of its proper divisors (203921123).

2243132221 is a wasteful number, since it uses less digits than its factorization.

2243132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203921122.

The product of its digits is 1152, while the sum is 22.

The square root of 2243132221 is about 47361.7168291015. The cubic root of 2243132221 is about 1309.0361032855.

Adding to 2243132221 its reverse (1222313422), we get a palindrome (3465445643).

The spelling of 2243132221 in words is "two billion, two hundred forty-three million, one hundred thirty-two thousand, two hundred twenty-one".