2243022221 has 4 divisors (see below), whose sum is σ = 2446933344. Its totient is φ = 2039111100.

The previous prime is 2243022209. The next prime is 2243022259. The reversal of 2243022221 is 1222203422.

2243022221 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 not a de Polignac number, because 2243022221 - 2⁶ = 2243022157 is a prime.

It is a super-2 number, since 2×2243022221² = 10062297367799545682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243022193 and 2243022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243022281) 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, 101955545 + ... + 101955566.

It is an arithmetic number, because the mean of its divisors is an integer number (611733336).

Almost surely, 2^2243022221 is an apocalyptic number.

It is an amenable number.

2243022221 is a deficient number, since it is larger than the sum of its proper divisors (203911123).

2243022221 is a wasteful number, since it uses less digits than its factorization.

2243022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203911122.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2243022221 is about 47360.5555393937. Note that the first 4 decimals coincide. The cubic root of 2243022221 is about 1309.0147051822.

Adding to 2243022221 its reverse (1222203422), we get a palindrome (3465225643).

The spelling of 2243022221 in words is "two billion, two hundred forty-three million, twenty-two thousand, two hundred twenty-one".