2244432221 has 4 divisors (see below), whose sum is σ = 2245899744. Its totient is φ = 2242964700.

The previous prime is 2244432199. The next prime is 2244432227. The reversal of 2244432221 is 1222344422.

2244432221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-2244432221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244432227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731465 + ... + 734526.

It is an arithmetic number, because the mean of its divisors is an integer number (561474936).

Almost surely, 2^2244432221 is an apocalyptic number.

It is an amenable number.

2244432221 is a deficient number, since it is larger than the sum of its proper divisors (1467523).

2244432221 is a wasteful number, since it uses less digits than its factorization.

2244432221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467522.

The product of its digits is 6144, while the sum is 26.

The square root of 2244432221 is about 47375.4390058815. The cubic root of 2244432221 is about 1309.2889369908.

Adding to 2244432221 its reverse (1222344422), we get a palindrome (3466776643).

The spelling of 2244432221 in words is "two billion, two hundred forty-four million, four hundred thirty-two thousand, two hundred twenty-one".